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{{Short description|Traditional system of measurement used in Korea}}{{Use dmy dates|date=July 2017}}
{{Short description|Traditional system of measurement used in Korea}}
{{Use dmy dates|date=July 2017}}
{{Infobox Korean name
{{Infobox Korean name
| title = Korean name
| title = Korean name
| hangul = {{lang|ko|척관법}}
| hangul = 척관법
| hanja = {{lang|ko-Hant|尺貫法}}
| hanja = 尺貫法
| rr = cheokgwan-beop
| rr = cheokgwan-beop
| mr = ch'ŏkkwan-pŏp
| mr = ch'ŏkkwan-pŏp
| koreanipa = {{IPA-ko|tɕʰʌk̚.k͈wan.p͈ʌp̚|}}
| koreanipa = {{IPA-ko|tɕʰʌk̚.k͈wan.p͈ʌp̚|}}
| othername1 =
| hangul1 = {{lang|ko|척근법}}
| hanja1 = {{lang|ko-Hant|尺斤法}}
| rr1 = cheokgeun-beop
| mr1 = ch'ŏkkŭn-pŏp
| koreanipa1 = {{IPA-ko|tɕʰʌk̚.k͈ɯn.p͈ʌp̚|}}
}}
}}
'''Korean units of measurement''', called '''''cheokgwan-beop''''' ({{Korean|hangul=척관법|hanja=尺貫法|labels=no}}) or '''''cheokgeun-beop''''' ({{Korean|hangul=척근법|hanja=尺斤法|labels=no}}) in Korean, is the [[Customary units|traditional]] system of measurement used by the people of the [[Korean peninsula]]. It is largely based on the [[Chinese units of measurement|Chinese system]], with influence from [[Japanese units of measurement|Japanese standards]] imposed following [[Japanese occupation of Korea|its annexation]] of the [[Korean Empire]] in 1910. Both [[North Korea|North]] and [[South Korea]] currently employ the [[metric system]]. Since 2007, South Korea has criminalized the use of Korean units in commercial contexts but informal use continues, especially of the ''[[pyeong]]'' as a measure of residential and commercial floorspace. North Korea continues to use the traditional units, although their standards are now derived from metric conversions.
'''Korean units of measurement''', called '''''cheokgwan-beop''''' ({{Korean|hangul=척관법|hanja=尺貫法}}) or '''''cheokgeun-beop''''' ({{Korean|hangul=척근법|hanja=尺斤法|labels=no}}) in Korean, is the [[Customary units|traditional]] system of measurement used by the people of the [[Korean peninsula]]. It is largely based on the [[Chinese units of measurement|Chinese system]], with influence from [[Japanese units of measurement|Japanese standards]] imposed following [[Japanese occupation of Korea|its annexation]] of the [[Korean Empire]] in 1910. Both [[North Korea|North]] and [[South Korea]] currently employ the [[metric system]]. Since 2007, South Korea has criminalized the use of Korean units in commercial contexts, but informal use continues, especially of the ''[[pyeong]]'' as a measure of residential and commercial floorspace. North Korea continues to use the traditional units, although their standards are now derived from metric conversions.


==History==
==History==
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Although most of the measures operate on a [[decimal]] system, the standard form was to read out the units of each place (as, e.g., 3{{nbsp}}''cheok'', 1{{nbsp}}''chon'', 4{{nbsp}}''bun'', 1{{nbsp}}''ri'') rather than list them as a single number of the largest unit (as 3.141{{nbsp}}''cheok'').{{sfnp|Ledyard|1994|p=285}}
Although most of the measures operate on a [[decimal]] system, the standard form was to read out the units of each place (as, e.g., 3{{nbsp}}''cheok'', 1{{nbsp}}''chon'', 4{{nbsp}}''bun'', 1{{nbsp}}''ri'') rather than list them as a single number of the largest unit (as 3.141{{nbsp}}''cheok'').{{sfnp|Ledyard|1994|p=285}}


===Joseon Kingdom===
===Joseon===
[[Taejo of Joseon|Yi Dan]] established a Market Bureau ({{lang|ko|{{linktext|시사}}}}, {{lang|ko|{{linktext|市司}}}}) or Bureau of Weights and Measures ({{lang|ko|{{linktext|평시서}}}}, {{lang|ko|{{linktext|平市署}}}}) at the foundation of the [[Joseon dynasty]] in 1392.{{sfnp|NIKH|2017}} The [[Joseon Kingdom]] later attempted a standardization of length based on square brass rulers, which were used by [[yangban|magistrates]] and the [[Secret royal inspector|secret police]] to fight commercial fraud.{{sfnp|Kim|2015}} Under the [[Joseon]], different classes of society were permitted different numbers of ''[[kan (unit)|kan]]'' in their homes, but in its traditional sense—like the Japanese ''[[ken (unit)|ken]]''—of a [[bay (architecture)|bay]] between two [[pillar (architecture)|pillar]]s rather than as a set unit of length.{{sfnp|Kim|2015}}
[[Taejo of Joseon]] established a Market Bureau ({{lang|ko|{{linktext|시사}}}}, {{lang|ko|{{linktext|市司}}}}) or Bureau of Weights and Measures ({{lang|ko|{{linktext|평시서}}}}, {{lang|ko|{{linktext|平市署}}}}) at the foundation of the [[Joseon dynasty]] in 1392.{{sfnp|NIKH|2017}} The [[Joseon Kingdom]] later attempted a standardization of length based on square brass rulers, which were used by [[yangban|magistrates]] and the [[Secret royal inspector|secret police]] to fight commercial fraud.{{sfnp|Kim|2015}} Under the [[Joseon]], different classes of society were permitted different numbers of ''[[kan (unit)|kan]]'' in their homes, but in its traditional sense—like the Japanese ''[[ken (unit)|ken]]''—of a [[bay (architecture)|bay]] between two [[pillar (architecture)|pillar]]s rather than as a set unit of length.{{sfnp|Kim|2015}}


The 1496 Great Codex of State Administration (''Kyŏngguk Taejŏn'') included a section on approved measures and their verification.{{sfnp|Ledyard|1994|p=285}} It employed a [[li (unit)|li]] of 360{{nbsp}}paces or 2160{{nbsp}}feet, but did not explicitly mention that conversion until its 1746 supplement.{{sfnp|Ledyard|1994|p=285}}
The 1496 Great Codex of State Administration (''Kyŏngguk Taejŏn'') included a section on approved measures and their verification.{{sfnp|Ledyard|1994|p=285}} It employed a [[li (unit)|li]] of 360{{nbsp}}paces or 2160{{nbsp}}feet but did not explicitly mention that conversion until its 1746 supplement.{{sfnp|Ledyard|1994|p=285}}


The 1897 Law on Weights and Measures uniting Korea's various local systems was the first legislation enacted upon the Joseon's establishment of the [[Korean Empire]].{{sfnp|Jo|2006}}
The 1897 Law on Weights and Measures uniting Korea's various local systems was the first legislation enacted upon the Joseon's establishment of the [[Korean Empire]].{{sfnp|Jo|2006}}


{{anchor|Japanese occupation|Japanese Chosen|Chōsen|Chosen}}
{{anchor|Japanese occupation|Japanese Chosen|Chōsen|Chosen}}

===Japanese Chōsen===
===Japanese Korea===
During the Japanese [[Japanese occupation of Korea|occupation from 1910 to 1945]], Japan imposed [[Japanese units|its standards]] on Korea. Two of the most common "traditional" units in Korea—the ''pyeong'' of [[floorspace]] and the jeweler's ''don''—were among those given their modern value by the Japanese.{{sfnp|Hong|2007}}
During the Japanese [[Japanese occupation of Korea|occupation from 1910 to 1945]], Japan imposed [[Japanese units|its standards]] on Korea. Two of the most common "traditional" units in Korea—the ''pyeong'' of [[floorspace]] and the jeweler's ''don''—were among those given their modern value by the Japanese.{{sfnp|Hong|2007}}


===South Korea===
===South Korea===
[[South Korea]] signed the [[Metre Convention]] in 1959<ref name=lordylordy/> and notionally [[metrification|adopted the metric system]] under [[Park Chung-hee]] on 10 May 1961,{{sfnp|DBI|1985|p=837}}{{sfnp|HMC|23 June 2007}} with a strict law banning the use of the Korean pound, li, ''gwan'', and ''don''<ref name=applerok/> effective as of 1 January 1964{{sfnp|DBI|1985|p=837}} and—after metric conversion of the [[land registry|land registries]]—the ''pyeong''.{{sfnp|Jo|2006}} The metrication was not applied to imported or exported goods{{sfnp|DBI|1985|p=837}} and remained so generally spotty as to be considered a failure,{{sfnp|Hong|2007}} with the government abandoning its attempts to enforce the statute by 1970.{{sfnp|Jo|2006}} The traditional units feature in many [[Korean language|Korean]] sayings{{efn|See, e.g., the proverbs on the importance of flattery and lying in [[Jeyseon Lee|Lee]].{{sfnp|Lee|2006|p=[https://books.google.com/books?id=H4CsWDEi52IC&pg=PA82 82]}}}} and much of its literature and poetry, including the [[Aegukga|national anthem]], which mentions Korea's "three thousand lis of rivers and mountains".{{sfnp|Hong|2007}} Further attempts to fully metricate occurred in 1983,<ref name=spy/><ref name=applerok/> 2000,{{sfnp|Jo|2006}} and 2001,{{sfnp|Hong|2007}} with publicity campaigns praising the [[metric system]] and condemning traditional units through TV and radio ads, brochures, signs, and contests.{{sfnp|Fessley|2009|p=4}} A common theme was the origin of the present values of the units under [[Japanese occupation of Korea|Japanese occupation]]; Yun Byeong-su of the [[Korea Association of Standards & Testing Organizations]] noted that "even Japan has forsaken the ''don'' for the units of grams and ounces but here we are standing around like idiots still blathering on about ''don''."{{sfnp|Jo|2006}} Nonetheless, strong opposition from the construction and jewelry industries and negative media coverage forced Korean politicians to avoid the topic and regulators to settle for dual use of conventional and metric measures.{{sfnp|Jo|2006}}
[[South Korea]] signed the [[Metre Convention]] in 1959<ref name=lordylordy/> and notionally [[metrification|adopted the metric system]] under [[Park Chung Hee]] on 10 May 1961,{{sfnp|DBI|1985|p=837}}{{sfnp|HMC|23 June 2007}} with a strict law banning the use of the Korean pound, li, ''gwan'', and ''don''<ref name=applerok/> effective as of 1 January 1964{{sfnp|DBI|1985|p=837}} and—after metric conversion of the [[land registry|land registries]]—the ''pyeong''.{{sfnp|Jo|2006}} The metrication was not applied to imported or exported goods{{sfnp|DBI|1985|p=837}} and remained so generally spotty as to be considered a failure,{{sfnp|Hong|2007}} with the government abandoning its attempts to enforce the statute by 1970.{{sfnp|Jo|2006}} The traditional units feature in many [[Korean language|Korean]] sayings{{efn|See, e.g., the proverbs on the importance of flattery and lying in [[Jeyseon Lee|Lee]].{{sfnp|Lee|2006|p=[https://books.google.com/books?id=H4CsWDEi52IC&pg=PA82 82]}}}} and much of its literature and poetry, including the [[Aegukga|national anthem]], which mentions Korea's "three thousand lis of rivers and mountains".{{sfnp|Hong|2007}} Further attempts to fully metricate occurred in 1983,<ref name=spy/><ref name=applerok/> 2000,{{sfnp|Jo|2006}} and 2001,{{sfnp|Hong|2007}} with publicity campaigns praising the [[metric system]] and condemning traditional units through TV and radio ads, brochures, signs, and contests.{{sfnp|Fessley|2009|p=4}} A common theme was the origin of the present values of the units under [[Japanese occupation of Korea|Japanese occupation]]; Yun Byeong-su of the [[Korea Association of Standards & Testing Organizations]] noted that "even Japan has forsaken the ''don'' for the units of grams and ounces but here we are standing around like idiots still blathering on about ''don''."{{sfnp|Jo|2006}} Nonetheless, strong opposition from the construction and jewelry industries and negative media coverage forced Korean politicians to avoid the topic and regulators to settle for dual use of conventional and metric measures.{{sfnp|Jo|2006}}


A 2006 study found 88% of real estate companies and 71% of jewelers in 7 major markets were still using the ''pyeong'' and ''don'',{{sfnp|Hong|2007}} after which the [[South Korean government|government]] decided simply to criminalize further commercial use of traditional units. (Another important factor was the [[European Union]] regulation mandating the use of metric in all imported goods by 2010.){{sfnp|HMC|22 July 2007}} The sale of [[ruler (tool)|ruler]]s marking Korean feet was ended{{sfnp|Jo|2006}} and a Measure Act effective 1 July 2007 empowered the [[Korean Agency for Technology and Standards]]<ref name=applerok/> of the [[South Korean Ministry of Commerce|Ministry of Commerce]] to begin immediately levying fines of up to [[₩]]500,000 for commercial use of the ''pyeong'' and ''don'', with less common units enjoying a longer [[grace period]].{{sfnp|Hong|2007}} The ban also included use of [[American units]], such as describing the [[display size]] of televisions and [[computer monitor]]s in terms of inches.<ref name=aak/>{{efn|A particular exception to this policy was made for the continued use of [[Pound (mass)|pound]]s for [[bowling ball]] sizes and yards on [[golf course]]s, owing to the international conventions of those sports.{{sfnp|Jo|2006}}}} The "serving size" used as an informal and variable measure of meat cuts was standardized to 100{{nbsp}}g.{{sfnp|Jo|2006}} Knowledge of the fine remained low for years, and it was later increased to a maximum of [[₩]]1,000,000 (about [[USD|$]]800) for users of illegal units{{sfnp|Fessley|2009|p=4}} and [[₩]]3,000,000 for sellers of measuring devices marked with unapproved units.<ref name=applerok>{{harvp|APLMF|2015|loc="[http://www.aplmf.org/republic-of-korea.html Republic of Korea]"}}.</ref> South Korea's measurement standards are now maintained by the [[Korea Research Institute of Standards and Science]].<ref name=applerok/>
A 2006 study found 88% of real estate companies and 71% of jewelers in 7 major markets were still using the ''pyeong'' and ''don'',{{sfnp|Hong|2007}} after which the [[South Korean government|government]] decided simply to criminalize further commercial use of traditional units. (Another important factor was the [[European Union]] regulation mandating the use of metric in all imported goods by 2010.){{sfnp|HMC|22 July 2007}} The sale of [[ruler (tool)|ruler]]s marking Korean feet was ended{{sfnp|Jo|2006}} and a Measure Act effective 1 July 2007 empowered the [[Korean Agency for Technology and Standards]]<ref name=applerok/> of the [[South Korean Ministry of Commerce|Ministry of Commerce]] to begin immediately levying fines of up to [[₩]]500,000 for commercial use of the ''pyeong'' and ''don'', with less common units enjoying a longer [[grace period]].{{sfnp|Hong|2007}} The ban also included use of [[American units]], such as describing the [[display size]] of televisions and [[computer monitor]]s in terms of inches.<ref name=aak/>{{efn|A particular exception to this policy was made for the continued use of [[Pound (mass)|pound]]s for [[bowling ball]] sizes and yards on [[golf course]]s, owing to the international conventions of those sports.{{sfnp|Jo|2006}}}} The "serving size" used as an informal and variable measure of meat cuts was standardized to 100{{nbsp}}g.{{sfnp|Jo|2006}} Knowledge of the fine remained low for years, and it was later increased to a maximum of [[₩]]1,000,000 (about [[USD|$]]800) for users of illegal units{{sfnp|Fessley|2009|p=4}} and [[₩]]3,000,000 for sellers of measuring devices marked with unapproved units.<ref name=applerok>{{harvp|APLMF|2015|loc="[http://www.aplmf.org/republic-of-korea.html Republic of Korea]"}}.</ref> South Korea's measurement standards are now maintained by the [[Korea Research Institute of Standards and Science]].<ref name=applerok/>
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===North Korea===
===North Korea===
Despite the importance of the [[Soviet Union]] in [[Division of Korea|establishing North Korea]], [[Kim Il-sung]] continued official use of Korean units until the DPRK's notional [[metrication]] under National Standard 4077-75 in 14 April 1975.<ref name=applenork>{{harvp|APLMF|2015|loc="[http://www.aplmf.org/dpr-korea.html DPR Korea]"}}.</ref>{{efn|This standard was subsequently superseded by National Standard 4077-91 in 1991,<ref name=applenork/> but that standard continued the use of the metric system as well.}} It joined the [[Meter Treaty]] in 1982<ref name=lordylordy>{{harvp|Lord|2001|loc="[https://sizes.com/units/General/met_sys_spred.htm Spread of the Metric System]"}}.</ref> or 1989,{{sfnp|BIPM|2007|p=194}} although it was removed from the [[International Bureau for Weights and Measures]] and related organizations in 2012 for its years of failure to pay the necessary fees.{{sfnp|BIPM|2014|p=5}} North Korea has long used the metric system in its state-run media and international publications,{{sfnp|YNA|2013}} but continues to use traditional units alongside the metric system{{sfnp|TEG|2017}} in sectors approved by the government.{{sfnp|DPRK|1993|loc=Ch. II, §§13–15}} North Korea's standards are administered by the [[Central Institute of Metrology]]<ref name=applenork/> under the [[State Administration of Quality Management]] in accordance with the Law on Metrology{{sfnp|DPRK|1993}} ratified by the [[Supreme People's Assembly of the Democratic People's Republic of Korea|Supreme People's Assembly]] on 3 February 1993.{{sfnp|CooMet|2013}} North Korea uses the ''pyeong'' in various regulations, such as the 50{{nbsp}}py per person allowed for private farming in 1987,{{sfnp|Park & al.|2014|p=[https://books.google.com/books?id=mW2EBgAAQBAJ&pg=PA33 33]}} despite guides who disparage the unit as a historical relic of the South to foreign tourists visiting the country.{{sfnp|Burdick|2010|p=[https://books.google.com/books?id=g3TJ_-Tw3q0C&pg=PA150 150]}} The metric system is thought not to have spread to domestic factories or stores prior to [[Kim Jong-un]]'s metrification initiative, announced in May 2013.{{sfnp|YNA|2013}} The change was part of Kim's policy of stressing the importance of science and technology and its "universal trends".{{sfnp|YNA|2013}} His announcement in the state-run quarterly ''Cultural Language Study'' said that increasing use of the metric system would "strengthen international exchange and cooperation... in the fields of industry, science, and technology and even in the area of general social life".{{sfnp|YNA|2013}}
Despite the importance of the [[Soviet Union]] in [[Division of Korea|establishing North Korea]], [[Kim Il Sung]] continued official use of Korean units until the DPRK's notional [[metrication]] under National Standard 4077–75 on 14 April 1975.<ref name=applenork>{{harvp|APLMF|2015|loc="[http://www.aplmf.org/dpr-korea.html DPR Korea]"}}.</ref>{{efn|This standard was subsequently superseded by National Standard 4077-91 in 1991,<ref name=applenork/> but that standard continued the use of the metric system as well.}} It joined the [[Meter Treaty]] in 1982<ref name=lordylordy>{{harvp|Lord|2001|loc="[https://sizes.com/units/General/met_sys_spred.htm Spread of the Metric System]"}}.</ref> or 1989,{{sfnp|BIPM|2007|p=194}} although it was removed from the [[International Bureau for Weights and Measures]] and related organizations in 2012 for its years of failure to pay the necessary fees.{{sfnp|BIPM|2014|p=5}} North Korea has long used the metric system in its state-run media and international publications,{{sfnp|YNA|2013}} but continues to use traditional units alongside the metric system{{sfnp|TEG|2017}} in sectors approved by the government.{{sfnp|DPRK|1993|loc=Ch. II, §§13–15}} North Korea's standards are administered by the [[Central Institute of Metrology]]<ref name=applenork/> under the [[State Administration of Quality Management]] in accordance with the Law on Metrology{{sfnp|DPRK|1993}} ratified by the [[Supreme People's Assembly of the Democratic People's Republic of Korea|Supreme People's Assembly]] on 3 February 1993.{{sfnp|CooMet|2013}} North Korea uses the ''pyeong'' in various regulations, such as the 50{{nbsp}}py per person allowed for private farming in 1987,{{sfnp|Park & al.|2014|p=[https://books.google.com/books?id=mW2EBgAAQBAJ&pg=PA33 33]}} despite guides who disparage the unit as a historical relic of the South to foreign tourists visiting the country.{{sfnp|Burdick|2010|p=[https://books.google.com/books?id=g3TJ_-Tw3q0C&pg=PA150 150]}} The metric system is thought not to have spread to domestic factories or stores prior to [[Kim Jong Un]]'s metrification initiative, announced in May 2013.{{sfnp|YNA|2013}} The change was part of Kim's policy of stressing the importance of science and technology and its "universal trends".{{sfnp|YNA|2013}} His announcement in the state-run quarterly ''Cultural Language Study'' said that increasing use of the metric system would "strengthen international exchange and cooperation... in the fields of industry, science, and technology and even in the area of general social life".{{sfnp|YNA|2013}}


==Length==
==Length==
The base unit of Korean length is the foot,{{sfnp|Kim|2007}} with other units changing over time based on its dimensions and multiples. Different ancient Korean kingdoms had different exact measurements;{{sfnp|Kim|2015}} that of [[Sejong the Great]] ({{abbr|r|ruled}}.{{nbsp}}1418–1450) was 31.22{{nbsp}}cm.{{sfnp|Kim|2007}} Under the early [[Joseon Kingdom]], the value of the foot varied by trade, with different lengths used for the carpentry foot and the fabric foot.{{sfnp|Kim|2015}}
The base unit of Korean length is the foot,{{sfnp|Kim|2007}} with other units changing over time based on its dimensions and multiples. Different ancient Korean kingdoms had different exact measurements;{{sfnp|Kim|2015}} that of [[Sejong the Great]] ({{abbr|r|ruled}}.{{nbsp}}1418–1450) was 31.22{{nbsp}}cm.{{sfnp|Kim|2007}} Under the early [[Joseon Kingdom]], the value of the foot varied by trade, with different lengths used for the carpentry foot and the fabric foot.{{sfnp|Kim|2015}}


The biggest difference between the traditional Korean and Chinese units of length is that the Korean equivalent of the ''[[bu (unit)|bu]]'' uses a different character and its pre-[[Tang dynasty|Tang]] composition of six Korean feet rather than five. (The ''bu'' was usually treated as a synonym of this unit within Korea but sometimes distinguished as a length of 4{{nbsp}}feet). In 369&nbsp;CE, during the reign of [[Geunchogo of Baekje|King Geunchogo]] of [[Baekje]], his realm seems to have used a foot of about 28.85{{nbsp}}cm.{{sfnp|Gwon|2010}}
The biggest difference between the traditional Korean and Chinese units of length is that the Korean equivalent of the ''[[bu (unit)|bu]]'' uses a different character and its pre-[[Tang dynasty|Tang]] composition of six Korean feet rather than five. (The ''bu'' was usually treated as a synonym of this unit within Korea but sometimes distinguished as a length of 4{{nbsp}}feet). In 369&nbsp;[[Common Era|CE]], during the reign of [[Geunchogo of Baekje|King Geunchogo]] of [[Baekje]], his realm seems to have used a foot of about 28.85{{nbsp}}cm.{{sfnp|Gwon|2010}}


The Korean li previously bore values around 434.16{{nbsp}}m (3rd century), 531.18{{nbsp}}m (6th–7th), 559.8{{nbsp}}m (7th–10th), 552.96{{nbsp}}m (10th–14th),<ref name=sly/> and 450{{nbsp}}m (19th);<ref name="oed">{{citation|title=Oxford English Dictionary|url=http://www.oed.com/|ref={{harvid|OED}}|contribution=ri, ''n.''|contribution-url=http://www.oed.com/view/Entry/165428|location=Oxford|publisher=Oxford University Press}}.</ref> it was also reckoned based on travel time and therefore varied in length between the plains and mountains.<ref name=oed/> It was standardized as {{sfrac|10}}{{nbsp}}of the [[Japanese ri]] of {{nowrap|3{{sfrac|51|55}} km}} in 1905.<ref name=sly>{{harvp|Lord|2006|loc=[https://sizes.com/units/li.htm#Korea "Li"]}}.</ref>{{efn|Both the 1955<ref name="un" /> and 1966 editions of the UN's report on national measurement systems report the Korean li as precisely equal to the Japanese ri, but this seems to be in error.<ref name=sly/>}}
The Korean li previously bore values around 434.16{{nbsp}}m (3rd century), 531.18{{nbsp}}m (6th–7th), 559.8{{nbsp}}m (7th–10th), 552.96{{nbsp}}m (10th–14th),<ref name=sly/> and 450{{nbsp}}m (19th);<ref name="oed">{{citation|title=Oxford English Dictionary|url=http://www.oed.com/|ref={{harvid|OED}}|contribution=ri, ''n.''|contribution-url=http://www.oed.com/view/Entry/165428|location=Oxford|publisher=Oxford University Press}}.</ref> it was also reckoned based on travel time and therefore varied in length between the plains and mountains.<ref name=oed/> It was standardized as {{sfrac|10}}{{nbsp}}of the [[Japanese ri]] of {{nowrap|3{{sfrac|51|55}} km}} in 1905.<ref name=sly>{{harvp|Lord|2006|loc=[https://sizes.com/units/li.htm#Korea "Li"]}}.</ref>{{efn|Both the 1955<ref name="un" /> and 1966 editions of the UN's report on national measurement systems report the Korean li as precisely equal to the Japanese ri, but this seems to be in error.<ref name=sly/>}}
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!Other
!Other
!Korean feet
!Korean feet
![[Chinese units|China]]/[[Japanese units|Japan]]
!Other countries
![[Metric system|Metric]]
!Global
|-
|-
|Ho
|Ho
|Ho
|Ho
|
|
|{{lang|ko|호}}({{lang|ko-Hant|毫}})
|{{lang|ko|호}}({{lang|ko|毫}})
| rowspan="2" |
| rowspan="2" |
| rowspan="2" |{{Frac|1|10000}}
| rowspan="2" |{{Frac|1|10000}}
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|Mo
|Mo
|
|
|{{lang|ko|모}}({{lang|ko-Hant|毛}})
|{{lang|ko|모}}({{lang|ko|毛}})
|-
|-
|Ri
|Ri
|Ri
|Ri
|
|
|{{lang|ko|리}}({{lang|ko-Hant|釐}}/{{lang|ko-Hant|厘}})
|{{lang|ko|리}}({{lang|ko|釐}}/{{lang|ko|厘}})
|
|
|{{Frac|1|1000}}
|{{Frac|1|1000}}
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|Pun
|Pun
|
|
|{{lang|ko|분}}({{lang|ko-Hant|分}})
|{{lang|ko|분}}({{lang|ko|分}})
|-
|-
|Chi
|Chi
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|Ch'on
|Ch'on
|
|
|{{lang|ko|촌}}({{lang|ko-Hant|寸}})
|{{lang|ko|촌}}({{lang|ko|寸}})
|-
|-
|Ja
|Ja
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|Ch'ŏk
|Ch'ŏk
|Chok<ref name="un" />
|Chok<ref name="un" />
|{{lang|ko|척}}({{lang|ko-Hant|尺}})
|{{lang|ko|척}}({{lang|ko|尺}})
|-
|-
|Gan
|Gan
|Kan
|Kan
|
|
|{{lang|ko|간}}({{lang|ko-Hant|間}})
|{{lang|ko|간}}({{lang|ko|間}})
| rowspan="2" |Korean pace{{sfnp|Ledyard|1994|p=285}}
| rowspan="2" |Korean pace{{sfnp|Ledyard|1994|p=285}}
| rowspan="2" |6
| rowspan="2" |6
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|Po{{sfnp|Ledyard|1994|p=285}}
|Po{{sfnp|Ledyard|1994|p=285}}
|
|
|{{lang|ko|보}}({{lang|ko-Hant|步}})
|{{lang|ko|보}}({{lang|ko|步}})
|-
|-
|Jang
|Jang
|Chang
|Chang
|
|
|{{lang|ko|장}}({{lang|ko-Hant|丈}})
|{{lang|ko|장}}({{lang|ko|丈}})
|Korean fathom{{sfnp|Ledyard|1994|p=285}}
|Korean fathom{{sfnp|Ledyard|1994|p=285}}
|10
|10
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|Chŏng
|Chŏng
|Chung<ref name="un" />
|Chung<ref name="un" />
|{{lang|ko|정}}({{lang|ko-Hant|町}})
|{{lang|ko|정}}({{lang|ko|町}})
|
|
|360
|360
Line 163: Line 159:
|Ri
|Ri
|Li<ref name="un" />{{sfnp|Fessley|2009|p=4}}
|Li<ref name="un" />{{sfnp|Fessley|2009|p=4}}
|{{lang|ko|리}}({{lang|ko-Hant|里}})
|{{lang|ko|리}}({{lang|ko|里}})
|Korean mile{{sfnp|Ledyard|1994|p=285}}<ref name="oed" />
|Korean mile{{sfnp|Ledyard|1994|p=285}}<ref name="oed" />
|1296
|1296
Line 191: Line 187:
|Chak
|Chak
|
|
|{{lang|ko|작}}({{lang|ko-Hant|勺}})
|{{lang|ko|작}}({{lang|ko|勺}})
|
|
|{{Frac|1|100}}
|{{Frac|1|100}}
Line 209: Line 205:
|P'yŏng
|P'yŏng
|Pyong<ref name="spy" /><ref name="aak" />{{sfnp|Rowlett|2002|loc="P"}}<br>Pyung<ref name="spy" /><ref name="un" /><br>
|Pyong<ref name="spy" /><ref name="aak" />{{sfnp|Rowlett|2002|loc="P"}}<br>Pyung<ref name="spy" /><ref name="un" /><br>
|{{lang|ko|평}}({{lang|ko-Hant|坪}})
|{{lang|ko|평}}({{lang|ko|坪}})
| rowspan="3" |Py<ref name="spy">{{harvp|Lord|2009|loc=[https://sizes.com/units/pyong.htm "What is a pyong?"]}}.</ref>{{sfnp|KOTRA|2010}}
| rowspan="3" |Py<ref name="spy">{{harvp|Lord|2009|loc=[https://sizes.com/units/pyong.htm "What is a pyong?"]}}.</ref>{{sfnp|KOTRA|2010}}
| rowspan="3" |1
| rowspan="3" |1
Line 218: Line 214:
|Kan
|Kan
|
|
|{{lang|ko|간}}({{lang|ko-Hant|間}})
|{{lang|ko|간}}({{lang|ko|間}})
|-
|-
|Bo
|Bo
|Po
|Po
|
|
|{{lang|ko|보}}({{lang|ko-Hant|步}})
|{{lang|ko|보}}({{lang|ko|步}})
|-
|-
|Myo<ref name="un" />
|Myo<ref name="un" />
|Myo
|Myo
|
|
|{{lang|ko|묘}}({{lang|ko-Hant|畝}})
|{{lang|ko|묘}}({{lang|ko|畝}})
|
|
|30
|30
Line 237: Line 233:
|Tan
|Tan
|
|
|{{lang|ko|단}}({{lang|ko-Hant|段}})
|{{lang|ko|단}}({{lang|ko|段}})
| rowspan="2" |
| rowspan="2" |
| rowspan="2" |300
| rowspan="2" |300
Line 246: Line 242:
|Tanbo
|Tanbo
|
|
|{{lang|ko|단보}}({{lang|ko-Hant|段步}})
|{{lang|ko|단보}}({{lang|ko|段步}})
|-
|-
|Jeong
|Jeong
|Chŏng
|Chŏng
|
|
|{{lang|ko|정}}({{lang|ko-Hant|町}})
|{{lang|ko|정}}({{lang|ko|町}})
| rowspan="3" |
| rowspan="3" |
| rowspan="3" |3000
| rowspan="3" |3000
Line 260: Line 256:
|Chŏngbo
|Chŏngbo
|Chungbo
|Chungbo
|{{lang|ko|정보}}({{lang|ko-Hant|町步}})
|{{lang|ko|정보}}({{lang|ko|町步}})
|-
|-
|Gyeong
|Gyeong
|Kyŏng
|Kyŏng
|
|
|{{lang|ko|경}}({{lang|ko-Hant|頃}})
|{{lang|ko|경}}({{lang|ko|頃}})
|-
|-
! colspan="3" |Romanization
! colspan="3" |Romanization
Line 294: Line 290:
|
|
|{{lang|ko|마지기}}
|{{lang|ko|마지기}}
| rowspan="2" |Land for planting a ''mal'' of seeds.{{efn|At the time of Korea's full metrification, a majigi was reckoned as 495{{nbsp}}m<sup>2</sup> in [[Gyeonggi]],{{sfnp|Jo|2006}} 660{{nbsp}}m<sup>2</sup> in [[Chungcheong]]{{sfnp|Jo|2006}} and some parts of [[Gangwon Province, South Korea|Gangwon]],<ref name=sorry>{{harvp|Sorensen|1988|p=[https://books.google.com/books?id=TIslraN_MiUC&pg=PA280 280]}}.</ref> and 990{{nbsp}}m<sup>2</sup> in other parts of Gangwon.{{sfnp|Jo|2006}} A similarly variable unit was the ''gyeol'' or ''kyŏl'' ({{lang|ko|{{linktext|결}}}} or {{lang|ko|{{linktext|結}}}}),{{sfnp|NIKH|2017}} whose size ran {{convert|2.2|-|9|acre|sqm|sp=us|0}} depending upon the fertility of the land.{{sfnp|Palais|1996|p=[https://books.google.com/books?id=t7k3CgAAQBAJ&pg=PA363 363]}}}}
| rowspan="2" |Land for planting a ''mal'' of seeds.{{efn|At the time of Korea's full metrification, a majigi was reckoned as 495{{nbsp}}m<sup>2</sup> in [[Gyeonggi]],{{sfnp|Jo|2006}} 660{{nbsp}}m<sup>2</sup> in [[Chungcheong]]{{sfnp|Jo|2006}} and some parts of [[Gangwon Province, South Korea|Gangwon]],<ref name=sorry>{{harvp|Sorensen|1988|p=[https://books.google.com/books?id=TIslraN_MiUC&pg=PA280 280]}}.</ref> and 990{{nbsp}}m<sup>2</sup> in other parts of Gangwon.{{sfnp|Jo|2006}} A similarly variable unit was the ''gyeol'' or ''kyŏl'' ({{lang|ko|결}} or {{lang|ko|{{linktext|結}}}}),{{sfnp|NIKH|2017}} whose size ran {{convert|2.2|-|9|acre|sqm|sp=us|0}} depending upon the fertility of the land.{{sfnp|Palais|1996|p=[https://books.google.com/books?id=t7k3CgAAQBAJ&pg=PA363 363]}}}}
| rowspan="2" |1
| rowspan="2" |1
| rowspan="2" |150‒300 (paddy field),
| rowspan="2" |150‒300 (paddy field),
Line 304: Line 300:
|Turak{{sfnp|Palais|1996|p=[https://books.google.com/books?id=t7k3CgAAQBAJ&pg=PA364 364]}}
|Turak{{sfnp|Palais|1996|p=[https://books.google.com/books?id=t7k3CgAAQBAJ&pg=PA364 364]}}
|
|
|{{lang|ko|두락}}({{lang|ko-Hant|斗落}})
|{{lang|ko|두락}}({{lang|ko|斗落}})
|-
|-
|Seomjigi
|Seomjigi
Line 340: Line 336:
|Ho
|Ho
|
|
|{{lang|ko|호}}({{lang|ko-Hant|毫}})
|{{lang|ko|호}}({{lang|ko|毫}})
| rowspan="2" |
| rowspan="2" |
| rowspan="2" |{{Frac|1|1,000,000}}
| rowspan="2" |{{Frac|1|1,000,000}}
Line 349: Line 345:
|Mo
|Mo
|
|
|{{lang|ko|모}}({{lang|ko-Hant|毛}})
|{{lang|ko|모}}({{lang|ko|毛}})
|-
|-
|Ri
|Ri
|Ri
|Ri
|
|
|{{lang|ko|리}}({{lang|ko-Hant|釐}}/{{lang|ko-Hant|厘}})
|{{lang|ko|리}}({{lang|ko|釐}}/{{lang|ko|厘}})
|
|
|{{Frac|1|100,000}}
|{{Frac|1|100,000}}
Line 372: Line 368:
|Pun
|Pun
|
|
|{{lang|ko|분}}({{lang|ko-Hant|分}})
|{{lang|ko|분}}({{lang|ko|分}})
|-
|-
|Don{{sfnp|Fessley|2009|p=7}}
|Don{{sfnp|Fessley|2009|p=7}}
Line 386: Line 382:
|Nyang
|Nyang
|Ryang{{sfnp|Grayson|2001|p=[https://books.google.com/books?id=DaA-AW6lAdwC&pg=PA219 219]}}Yang<ref name="un" />
|Ryang{{sfnp|Grayson|2001|p=[https://books.google.com/books?id=DaA-AW6lAdwC&pg=PA219 219]}}Yang<ref name="un" />
|{{lang|ko|냥}}({{lang|ko-Hant|兩}})
|{{lang|ko|냥}}({{lang|ko|兩}})
|Korean ounce
|Korean ounce
|{{Frac|1|100}}
|{{Frac|1|100}}
Line 394: Line 390:
|Geun
|Geun
|Kŭn
|Kŭn
|Keun<ref name="un" />Kon<ref name="circlek">{{harvp|Rowlett|2002|loc="[https://www.unc.edu/~rowlett/units/dictK.html K]"}}.</ref>
|Keun<ref name="un" /> Kon<ref name="circlek">{{harvp|Rowlett|2002|loc="[https://www.unc.edu/~rowlett/units/dictK.html K]"}}.</ref>
|{{lang|ko|근}}({{lang|ko-Hant|斤}})
|{{lang|ko|근}}({{lang|ko|斤}})
|Korean pound
|Korean pound
|{{Frac|4|25}} (meat),
|{{Frac|4|25}} (meat),
Line 405: Line 401:
|Kwan
|Kwan
|
|
|{{lang|ko|관}}({{lang|ko-Hant|貫}})
|{{lang|ko|관}}({{lang|ko|貫}})
|
|
|1
|1
Line 433: Line 429:
|Chak
|Chak
|
|
|{{lang|ko|작}}({{lang|ko-Hant|勺}})
|{{lang|ko|작}}({{lang|ko|勺}})
|
|
|{{Frac|1|100}}
|{{Frac|1|100}}
Line 460: Line 456:
|Sŭng
|Sŭng
|
|
|{{lang|ko|승}}({{lang|ko-Hant|升}})
|{{lang|ko|승}}({{lang|ko|升}})
|-
|-
|Mal
|Mal
Line 474: Line 470:
|Tu
|Tu
|
|
|{{lang|ko|두}}({{lang|ko-Hant|斗}})
|{{lang|ko|두}}({{lang|ko|斗}})
|-
|-
|Seom
|Seom
Line 488: Line 484:
|Sŏk
|Sŏk
|Suk<ref name="un" />
|Suk<ref name="un" />
|{{lang|ko|석}}({{lang|ko-Hant|石}})
|{{lang|ko|석}}({{lang|ko|石}})
|-
|-
|Jeom
|Jeom
|Chŏm
|Chŏm
|
|
|{{lang|ko|점}}({{lang|ko-Hant|苫}})
|{{lang|ko|점}}({{lang|ko|苫}})
|-
|-
|Sogok
|Sogok
|Sogok
|Sogok
|
|
|{{lang|ko|소곡}}({{lang|ko-Hant|小斛}})
|{{lang|ko|소곡}}({{lang|ko|小斛}})
| rowspan="2" |
| rowspan="2" |
| rowspan="2" |150
| rowspan="2" |150
Line 507: Line 503:
|P'yŏngsŏk
|P'yŏngsŏk
|
|
|{{lang|ko|평석}}({{lang|ko-Hant|平石}})
|{{lang|ko|평석}}({{lang|ko|平石}})
|-
|-
|Daegok
|Daegok
|Taegok
|Taegok
|
|
|{{lang|ko|대곡}}({{lang|ko-Hant|大斛}})
|{{lang|ko|대곡}}({{lang|ko|大斛}})
| rowspan="2" |
| rowspan="2" |
| rowspan="2" |200
| rowspan="2" |200
Line 521: Line 517:
|Chŏnsŏk
|Chŏnsŏk
|
|
|{{lang|ko|전석}}({{lang|ko-Hant|全石}})
|{{lang|ko|전석}}({{lang|ko|全石}})
|}
|}
The [[Statistical Office of the United Nations|United Nations]] also reported a "small mal" half the size of the standard ''mal''.<ref name=un/> In contexts involving volume, two cubic forms of "pyeong" were also formerly used. The pyeong of gravel was a cubic ''gan'' (about 6.01{{nbsp}}m<sup>3</sup>);<ref name=spy/> the pyeong of firewood was {{frac|1|3}} as much (about{{nbsp}}2.0035{{nbsp}}m<sup>3</sup>).<ref name=spy/> [[James B. Palais|Palais]] reports alternate ''seoks'' of 15 and 20 ''mal'' each.{{sfnp|Palais|1996|p=[https://books.google.com/books?id=t7k3CgAAQBAJ&pg=PA1083 1083]}}
The [[Statistical Office of the United Nations|United Nations]] also reported a "small mal" half the size of the standard ''mal''.<ref name=un/> In contexts involving volume, two cubic forms of "pyeong" were also formerly used. The pyeong of gravel was a cubic ''gan'' (about 6.01{{nbsp}}m<sup>3</sup>);<ref name=spy/> the pyeong of firewood was {{frac|1|3}} as much (about{{nbsp}}2.0035{{nbsp}}m<sup>3</sup>).<ref name=spy/> [[James B. Palais|Palais]] reports alternate ''seoks'' of 15 and 20 ''mal'' each.{{sfnp|Palais|1996|p=[https://books.google.com/books?id=t7k3CgAAQBAJ&pg=PA1083 1083]}}
Line 527: Line 523:
==See also==
==See also==
* [[Metric system]]
* [[Metric system]]
* [[Chinese units of measurement|Chinese]], [[Japanese units of measurement|Japanese]], [[Mongolian units|Mongolian]] and [[Vietnamese units of measurement]]
*[[Chinese units of measurement|Chinese]], [[Taiwanese units|Taiwanese]], [[Hong Kong units|Hong Kong]], [[Japanese units|Japanese]], [[Mongolian units|Mongolian]] & [[Vietnamese units of measurement]]
* [[Korean units of currency]]
* [[Korean units of currency]]
* [[Korean Agency for Technology and Standards|KATS]], [[Korean Standards Association|KSA]], [[KRISS]], & [[KASTO]], South Korean standards organizations
* [[Korean Agency for Technology and Standards|KATS]], [[Korean Standards Association|KSA]], [[KRISS]], & [[KASTO]], South Korean standards organizations
Line 547: Line 543:
* {{citation |ref={{harvid|DBI|1985}} |year=1985 |publisher=Dun & Bradstreet Int'l |title=1986/87 Exporters' Encyclopedia |contribution=Korea }}.
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Line 559: Line 555:
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* {{citation |last=Jo |first=Gye Wen |editor-last=Rakove |editor-first=Daniel |date=6 November 2006 |contribution-url = http://www.hani.co.kr/arti/english_edition/e_business/169838.html |contribution=Does Metric System Measure Up? |title=The Hankyoreh |url = http://www.hani.co.kr |publisher=[[The Hankyoreh]] Media Co. |location=Seoul }}.
* {{citation |last=Kim |first=Ji-myung |contribution-url=http://www.koreatimes.co.kr/www/opinion/2017/04/355_178572.html |contribution=How Big Is a 'Kan'? |date=8 May 2015 |title=The Korea Times |url=http://www.koreatimes.co.kr/ |location=Seoul |publisher=Hankook Ilbo }}.
* {{citation |last=Kim |first=Ji-myung |contribution-url=http://www.koreatimes.co.kr/www/opinion/2017/04/355_178572.html |contribution=How Big Is a 'Kan'? |date=8 May 2015 |title=The Korea Times |url=https://www.koreatimes.co.kr/ |location=Seoul |publisher=[[Hankook Ilbo]] }}.
* {{citation |last=Kim |first=Jun Hee |contribution=Taking Measure |title=Invest Korea Journal |volume=25 |date=March 2007 |location=Seoul |publisher=Korea Trade–Investment Promotion Agency }}.
* {{citation |last=Kim |first=Jun Hee |contribution=Taking Measure |title=Invest Korea Journal |volume=25 |date=March 2007 |location=Seoul |publisher=Korea Trade–Investment Promotion Agency }}.
* {{citation |last=Kim |first=Sun Joo |contribution=Glossary |title=The Northern Region of Korea: History, Identity, and Culture |url = https://books.google.com/books?id=mVvSdPghJ3wC |publisher=University of Washington Press |location=Seattle |year=2010 |pages = 327–339 |isbn=9780295990415 }}.
* {{citation |last=Kim |first=Sun Joo |contribution=Glossary |title=The Northern Region of Korea: History, Identity, and Culture |url = https://books.google.com/books?id=mVvSdPghJ3wC |publisher=University of Washington Press |location=Seattle |year=2010 |pages = 327–339 |isbn=9780295990415 }}.

Latest revision as of 16:31, 12 June 2024

Korean name
Hangul
척관법
Hanja
尺貫法
Revised Romanizationcheokgwan-beop
McCune–Reischauerch'ŏkkwan-pŏp
IPA[tɕʰʌk̚.k͈wan.p͈ʌp̚]

Korean units of measurement, called cheokgwan-beop (Korean척관법; Hanja尺貫法) or cheokgeun-beop (척근법; 尺斤法) in Korean, is the traditional system of measurement used by the people of the Korean peninsula. It is largely based on the Chinese system, with influence from Japanese standards imposed following its annexation of the Korean Empire in 1910. Both North and South Korea currently employ the metric system. Since 2007, South Korea has criminalized the use of Korean units in commercial contexts, but informal use continues, especially of the pyeong as a measure of residential and commercial floorspace. North Korea continues to use the traditional units, although their standards are now derived from metric conversions.

History

[edit]

Ancient Korea

[edit]

Customary Korean units are a local adaption of the traditional Chinese system, which was adopted at a very early date.[1] They were imposed and adjusted at various times by royal statutes.[2] The details of the system have varied over time and location in Korea's history.[3][4] Standardization—to the extent it occurred—was accomplished by officially sanctioned rulers, ropes, odometers, triangulation devices,[5] weights, cups, and basins.

Although most of the measures operate on a decimal system, the standard form was to read out the units of each place (as, e.g., 3 cheok, 1 chon, 4 bun, 1 ri) rather than list them as a single number of the largest unit (as 3.141 cheok).[1]

Joseon

[edit]

Taejo of Joseon established a Market Bureau (시사, 市司) or Bureau of Weights and Measures (평시서, 平市署) at the foundation of the Joseon dynasty in 1392.[6] The Joseon Kingdom later attempted a standardization of length based on square brass rulers, which were used by magistrates and the secret police to fight commercial fraud.[7] Under the Joseon, different classes of society were permitted different numbers of kan in their homes, but in its traditional sense—like the Japanese ken—of a bay between two pillars rather than as a set unit of length.[7]

The 1496 Great Codex of State Administration (Kyŏngguk Taejŏn) included a section on approved measures and their verification.[1] It employed a li of 360 paces or 2160 feet but did not explicitly mention that conversion until its 1746 supplement.[1]

The 1897 Law on Weights and Measures uniting Korea's various local systems was the first legislation enacted upon the Joseon's establishment of the Korean Empire.[8]

Japanese Korea

[edit]

During the Japanese occupation from 1910 to 1945, Japan imposed its standards on Korea. Two of the most common "traditional" units in Korea—the pyeong of floorspace and the jeweler's don—were among those given their modern value by the Japanese.[9]

South Korea

[edit]

South Korea signed the Metre Convention in 1959[10] and notionally adopted the metric system under Park Chung Hee on 10 May 1961,[11][12] with a strict law banning the use of the Korean pound, li, gwan, and don[13] effective as of 1 January 1964[11] and—after metric conversion of the land registries—the pyeong.[8] The metrication was not applied to imported or exported goods[11] and remained so generally spotty as to be considered a failure,[9] with the government abandoning its attempts to enforce the statute by 1970.[8] The traditional units feature in many Korean sayings[a] and much of its literature and poetry, including the national anthem, which mentions Korea's "three thousand lis of rivers and mountains".[9] Further attempts to fully metricate occurred in 1983,[15][13] 2000,[8] and 2001,[9] with publicity campaigns praising the metric system and condemning traditional units through TV and radio ads, brochures, signs, and contests.[16] A common theme was the origin of the present values of the units under Japanese occupation; Yun Byeong-su of the Korea Association of Standards & Testing Organizations noted that "even Japan has forsaken the don for the units of grams and ounces but here we are standing around like idiots still blathering on about don."[8] Nonetheless, strong opposition from the construction and jewelry industries and negative media coverage forced Korean politicians to avoid the topic and regulators to settle for dual use of conventional and metric measures.[8]

A 2006 study found 88% of real estate companies and 71% of jewelers in 7 major markets were still using the pyeong and don,[9] after which the government decided simply to criminalize further commercial use of traditional units. (Another important factor was the European Union regulation mandating the use of metric in all imported goods by 2010.)[17] The sale of rulers marking Korean feet was ended[8] and a Measure Act effective 1 July 2007 empowered the Korean Agency for Technology and Standards[13] of the Ministry of Commerce to begin immediately levying fines of up to 500,000 for commercial use of the pyeong and don, with less common units enjoying a longer grace period.[9] The ban also included use of American units, such as describing the display size of televisions and computer monitors in terms of inches.[18][b] The "serving size" used as an informal and variable measure of meat cuts was standardized to 100 g.[8] Knowledge of the fine remained low for years, and it was later increased to a maximum of 1,000,000 (about $800) for users of illegal units[16] and 3,000,000 for sellers of measuring devices marked with unapproved units.[13] South Korea's measurement standards are now maintained by the Korea Research Institute of Standards and Science.[13]

Despite this strong official discouragement, some use continues in retail, manufacturing, and farming.[16] Even among those who have adopted metric units, informal use of awkward metric fractions equivalent to round amounts of the former units is common, especially with regard to the very common pyeong of floorspace.[18][8] (Such treatment was avoided in the gold market by laws requiring pricing and denomination in even amounts of grams.)[8] Another dodge has been to treat the traditional units as a nondescript 'unit', such as marketing an air conditioner appropriate for a 20 py home as a "20-Type".[18]

North Korea

[edit]

Despite the importance of the Soviet Union in establishing North Korea, Kim Il Sung continued official use of Korean units until the DPRK's notional metrication under National Standard 4077–75 on 14 April 1975.[19][c] It joined the Meter Treaty in 1982[10] or 1989,[20] although it was removed from the International Bureau for Weights and Measures and related organizations in 2012 for its years of failure to pay the necessary fees.[21] North Korea has long used the metric system in its state-run media and international publications,[22] but continues to use traditional units alongside the metric system[23] in sectors approved by the government.[24] North Korea's standards are administered by the Central Institute of Metrology[19] under the State Administration of Quality Management in accordance with the Law on Metrology[25] ratified by the Supreme People's Assembly on 3 February 1993.[26] North Korea uses the pyeong in various regulations, such as the 50 py per person allowed for private farming in 1987,[27] despite guides who disparage the unit as a historical relic of the South to foreign tourists visiting the country.[28] The metric system is thought not to have spread to domestic factories or stores prior to Kim Jong Un's metrification initiative, announced in May 2013.[22] The change was part of Kim's policy of stressing the importance of science and technology and its "universal trends".[22] His announcement in the state-run quarterly Cultural Language Study said that increasing use of the metric system would "strengthen international exchange and cooperation... in the fields of industry, science, and technology and even in the area of general social life".[22]

Length

[edit]

The base unit of Korean length is the foot,[29] with other units changing over time based on its dimensions and multiples. Different ancient Korean kingdoms had different exact measurements;[7] that of Sejong the Great (r. 1418–1450) was 31.22 cm.[29] Under the early Joseon Kingdom, the value of the foot varied by trade, with different lengths used for the carpentry foot and the fabric foot.[7]

The biggest difference between the traditional Korean and Chinese units of length is that the Korean equivalent of the bu uses a different character and its pre-Tang composition of six Korean feet rather than five. (The bu was usually treated as a synonym of this unit within Korea but sometimes distinguished as a length of 4 feet). In 369 CE, during the reign of King Geunchogo of Baekje, his realm seems to have used a foot of about 28.85 cm.[4]

The Korean li previously bore values around 434.16 m (3rd century), 531.18 m (6th–7th), 559.8 m (7th–10th), 552.96 m (10th–14th),[30] and 450 m (19th);[31] it was also reckoned based on travel time and therefore varied in length between the plains and mountains.[31] It was standardized as 1/10 of the Japanese ri of 351/55 km in 1905.[30][d]

Romanization Korean English Equivalents
RR MR[1] Other Korean feet China/Japan Metric
Ho Ho () 110000 0.03 mm (0.0012 in)
Mo Mo ()
Ri Ri (/) 11000 0.30 mm (0.012 in)
Pun P'un Poun[33][e] 1100 0.30 cm (0.12 in)[16]
Bun Pun ()
Chi Ch'i Korean inch[1] 110 Cun 3.03 cm (1.19 in)[16]
Chon[7] Ch'on ()
Ja Cha Korean foot[32][1] 1 Chi, Shaku 30.3 cm (11.9 in)[32][f][16]
Cheok[29] Ch'ŏk Chok[32] ()
Gan Kan () Korean pace[1] 6 Ken 181.8 cm (71.6 in)[32]
Bo Po[1] ()
Jang Chang () Korean fathom[1] 10 Zhang 3.03 m (9.9 ft)
Jeong Chŏng Chung[32] () 360 109.08 m (357.9 ft)[32]
Ri Ri Li[32][16] () Korean mile[1][31] 1296 Li 0.393 km (0.244 mi)[29][31][32][16][g]

Area

[edit]

The base unit of Korean area is the pyeong,[29] equivalent to a square kan or 36 square Korean feet. It comprised about 3.158 m2 during Korea's Three Kingdoms Era;[7] the present value derives from the units established by the Japanese.[7] Despite being notionally illegal, the pyeong remains particularly common when discussing residential and commercial floorspace[34][35][18] and tiles.[15] A separate pyeong of 0.09 m2 was used for selling glass.[8] The floorspace pyeong is still prevalent enough that it continues to be glossed in the government's promotional material for foreign investors.[36]

Farms and large estates were formerly generally measured in majigi, which is notionally not based on multiples of the pyeong but on the amount of land suitable for the planting of one mall of rice or grain seed.[37] In practice, it was standardized to the pyeong system but varied in size from province to province based on the average richness of their soil.

Romanization Korean English Equivalents
RR MR[16] Other Pyeong Other countries Global
Jak Chak () 1100 0.0330579 m2 (0.355832 sq ft)
Hop Hop 110 0.33058 m2 (3.5583 sq ft)
Pyeong P'yŏng Pyong[15][18][38]
Pyung[15][32]
() Py[15][36] 1 3.3058 m2 (35.583 sq ft)[15][32][h][7]
Gan Kan ()
Bo Po ()
Myo[32] Myo () 30 99.174 m2 (1,067.50 sq ft)[32]
Dan Tan () 300 991.74 m2 (10,675.0 sq ft)[32]
Danbo Tanbo 단보(段步)
Jeong Chŏng () 3000 9,917.4 m2 (106,750 sq ft)[32]
Jeongbo Chŏngbo Chungbo 정보(町步)
Gyeong Kyŏng ()
Romanization Korean Explanation Equivalents
RR MR[16] Other Majigi Pyeong Global
Doejigi Toejigi 되지기 Land for planting a doe of seeds. 110 15‒30 (paddy field),

10 (other field)

49.59–99.17 m2 (533.8–1,067.5 sq ft) paddy field

33.06 m2 (355.9 sq ft) other field

Majigi Majigi 마지기 Land for planting a mal of seeds.[i] 1 150‒300 (paddy field),

100 (other field)

495.87–991.74 m2 (5,337.5–10,675.0 sq ft) paddy field

330.58 m2 (3,558.3 sq ft) other field

Durak Turak[41] 두락(斗落)
Seomjigi Sŏmjigi 섬지기 Land for planting a seom of seeds. 10 2,000 (paddy field),

1,000 (other field)

6,611.57 m2 (71,166.3 sq ft) paddy field

3,305.79 m2 (35,583.2 sq ft) other field

Weight

[edit]

The base unit of Korean weight is the gwan.[29] At the time of Korea's metrification, however, the pound was in more common use. Although it was usually taken as equivalent to 600 g,[17] as with red pepper and meats,[8][7] a separate pound of 400 g was used for fruits[8][7] and another of 375[29] or 200 g was used for vegetables.[8] The nyang also sees some use among Korea's vendors of traditional Chinese medicine.[42]

The "bag" (kama) was a variable unit usually figured as 54 kg of unhusked rice or 60 kg of polished rice, although 90 kg "bags" were also used.[39]

Romanization Korean English Equivalents
RR MR[1] Other Gwan[32] Other countries Global
Ho Ho () 11,000,000 3.75 mg (0.0579 gr)
Mo Mo ()
Ri Ri (/) 1100,000 0.0375 g (0.00132 oz)
Pun P'un 110,000 0.375 g (0.0132 oz)
Bun Pun ()
Don[43] Ton 11,000 Momme[32] 3.75 g (0.132 oz)[32][j]
Nyang Nyang Ryang[44]Yang[32] () Korean ounce 1100 Tael 37.5 g (1.32 oz)[32][k][l]
Geun Kŭn Keun[32] Kon[46] () Korean pound 425 (meat),

110 (others)

Catty[46] 600 g (21 oz) (meat),[32][m][43]375 g (13.2 oz) (others)
Gwan Kwan () 1 3.75 kg (8.3 lb)[32][43]

Volume

[edit]

The base unit of Korean volume or capacity is the doi.[29]

In 3rd-century Gaya, the mal was reckoned at about 2 L, the size of the present-day doe.[4] In the early 17th century, the Joseon picul was reckoned as 15 or 20 mal, but similarly only comprised 89.464 or 119.285 L owing to the smaller size of the mal at that time.[47]

Romanization Korean English Equivalents
RR MR[48] Other Doe[32] Other countries Global
Jak Chak () 1100 18 mL (0.63 imp fl oz; 0.61 US fl oz)
Hop Hop 110 Ge 180 mL (6.3 imp fl oz; 6.1 US fl oz)[n][32]
Doe Toe Doi[32]
Dwe[29]
Korean Peck[6] 1 1.8 L (0.40 imp gal; 0.48 US gal)[o][32]
Seung Sŭng ()
Mal Mal Korean Bushel[37] 10 18 L (4.0 imp gal; 4.8 US gal)[p][32]
Du Tu ()
Seom Sŏm Korean Picul[6] 100 Picul 180 L (40 imp gal; 48 US gal)[q][32]
Seok Sŏk Suk[32] ()
Jeom Chŏm ()
Sogok Sogok 소곡(小斛) 150 270 L (59 imp gal; 71 US gal)
Pyeongseok P'yŏngsŏk 평석(平石)
Daegok Taegok 대곡(大斛) 200 360 L (79 imp gal; 95 US gal)
Jeonseok Chŏnsŏk 전석(全石)

The United Nations also reported a "small mal" half the size of the standard mal.[32] In contexts involving volume, two cubic forms of "pyeong" were also formerly used. The pyeong of gravel was a cubic gan (about 6.01 m3);[15] the pyeong of firewood was 13 as much (about 2.0035 m3).[15] Palais reports alternate seoks of 15 and 20 mal each.[49]

See also

[edit]

Notes

[edit]
  1. ^ See, e.g., the proverbs on the importance of flattery and lying in Lee.[14]
  2. ^ A particular exception to this policy was made for the continued use of pounds for bowling ball sizes and yards on golf courses, owing to the international conventions of those sports.[8]
  3. ^ This standard was subsequently superseded by National Standard 4077-91 in 1991,[19] but that standard continued the use of the metric system as well.
  4. ^ Both the 1955[32] and 1966 editions of the UN's report on national measurement systems report the Korean li as precisely equal to the Japanese ri, but this seems to be in error.[30]
  5. ^ Bernadou, however, describes his "poun" as 1/10 rather than 1/100 of the Korean foot.[33]
  6. ^ Fessley gives the mistaken conversion 11.8 in.[16]
  7. ^ Although this is very close to 14 mile, Fessley gives the mistaken conversion 13 mile.[16]
  8. ^ Although this is equivalent to about 1/1224 acre, Fessley gives the mistaken conversion 1/1213.541 acre.[34]
  9. ^ At the time of Korea's full metrification, a majigi was reckoned as 495 m2 in Gyeonggi,[8] 660 m2 in Chungcheong[8] and some parts of Gangwon,[39] and 990 m2 in other parts of Gangwon.[8] A similarly variable unit was the gyeol or kyŏl ( or ),[6] whose size ran 2.2–9 acres (8,903–36,422 m2) depending upon the fertility of the land.[40]
  10. ^ Fessley gives the value 32.8 gr.[43]
  11. ^ Fessley gives the value 34 oz.[43]
  12. ^ Grayson gives 37.3 g.[45]
  13. ^ Fessley gives the mistaken conversion 1 lb 3.2 oz.[43]
  14. ^ The variant figures in Fessley[48] and the UN[32] reports are based on the imperial measuring system.
  15. ^ imp
  16. ^ imp
  17. ^ imp

References

[edit]

Citations

[edit]
  1. ^ a b c d e f g h i j k l Ledyard (1994), p. 285.
  2. ^ Kim (2010).
  3. ^ Fessley (2009), p. 1.
  4. ^ a b c Gwon (2010).
  5. ^ Ledyard (1994), p. 284.
  6. ^ a b c d NIKH (2017).
  7. ^ a b c d e f g h i j Kim (2015).
  8. ^ a b c d e f g h i j k l m n o p q r Jo (2006).
  9. ^ a b c d e f Hong (2007).
  10. ^ a b Lord (2001), "Spread of the Metric System".
  11. ^ a b c DBI (1985), p. 837.
  12. ^ HMC & 23 June 2007.
  13. ^ a b c d e APLMF (2015), "Republic of Korea".
  14. ^ Lee (2006), p. 82.
  15. ^ a b c d e f g h Lord (2009), "What is a pyong?".
  16. ^ a b c d e f g h i j k l Fessley (2009), p. 4.
  17. ^ a b HMC & 22 July 2007.
  18. ^ a b c d e "Pyeong, and Old Habits Dying Hard", Ask a Korean!, 21 July 2012.
  19. ^ a b c APLMF (2015), "DPR Korea".
  20. ^ BIPM (2007), p. 194.
  21. ^ BIPM (2014), p. 5.
  22. ^ a b c d YNA (2013).
  23. ^ TEG (2017).
  24. ^ DPRK (1993), Ch. II, §§13–15.
  25. ^ DPRK (1993).
  26. ^ CooMet (2013).
  27. ^ Park & al. (2014), p. 33.
  28. ^ Burdick (2010), p. 150.
  29. ^ a b c d e f g h i Kim (2007).
  30. ^ a b c Lord (2006), "Li".
  31. ^ a b c d "ri, n.", Oxford English Dictionary, Oxford: Oxford University Press.
  32. ^ a b c d e f g h i j k l m n o p q r s t u v w x y z aa ab ac ad ae af UN (1955), III-59.
  33. ^ a b Bernadou (1890).
  34. ^ a b Fessley (2009), p. 5.
  35. ^ Zatko (2011), p. 204.
  36. ^ a b KOTRA (2010).
  37. ^ a b Yu & al. (2004), p. 178.
  38. ^ Rowlett (2002), "P".
  39. ^ a b Sorensen (1988), p. 280.
  40. ^ Palais (1996), p. 363.
  41. ^ Palais (1996), p. 364.
  42. ^ B., Paul (21 February 2011), "Measurements", An Acorn in the Dog's Food, LiveJournal.
  43. ^ a b c d e f Fessley (2009), p. 7.
  44. ^ Grayson (2001), p. 219.
  45. ^ Grayson (2001), p. 220.
  46. ^ a b Rowlett (2002), "K".
  47. ^ Kim 2010, p. 337.
  48. ^ a b Fessley (2009), p. 9.
  49. ^ Palais (1996), p. 1083.

Sources

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