Indonesian units of measurement
{{Short description|Units of measurement used in Indonesia}}
A number of units of measurement were used in Indonesia to measure length, mass, capacity, etc. Metric system adopted in 1923 and has been compulsory in Indonesia since 1938.{{Cite book|title = Encyclopaedia of Scientific Units, Weights and Measures. Their SI Equivalences and Origins.|last = Cardarelli |first = F.|publisher = Springer|year = 2003|isbn = 978-1-4471-1122-1|location = London|pages = 151}}
System before metric system
Old Dutch and local measures were used under Dutch East Indies. Local measures were very variable, and later they have been legally defined with their metric equivalents.{{Cite book|title = International Critical Tables of Numerical Data, Physics, Chemistry and Technology|last = Washburn|first = E.W.|publisher = McGraw-Hil Book Company, Inc|year = 1926|location = New York|pages = [https://archive.org/details/bub_gb_zkErAAAAYAAJ/page/n27 5], 6 |url=https://archive.org/details/bub_gb_zkErAAAAYAAJ |quote = international critical hellotables 1926.| access-date=8 February 2015}}
=Length=
A number of units were used to measure length. One depa was equal to 1.70 m by its legal definition. Some other units and their legal equivalents are given below:
1 hasta = {{frac|1|4}} depa
=Mass=
A number of units were used to measure mass.
==Ordinary==
One pikol (or one pecul) was equal to {{val|61.7613025}} kg by its legal definition. Some other units and their legal equivalents are given below:
1 thail = {{frac|1|1600}} pikol
1 catti = {{frac|1|100}} pikol
1 kabi = {{frac|1|100}} pikol
1 kulack = 0.0725 pikol
1 amat = 2 pikol
1 small bahar = 3 pikol
1 large bahar = 4.5 pikol
1 timbang = 5 pikol
1 kojang (Batavia) = 27 pikol = 1667.555 kg
1 kojang (Semarang) = 28 pikol = 1729.316 kg
==For precious metals==
==For opium==
=Area=
=Capacity=
Two systems, dry and liquid, were used to measure capacity.
==Dry==
Several units were used to measure dry capacity. One kojang was equal to 2011.2679 L by its legal definition. One pikol was equal to {{frac|1|30}} kojang.
==Liquid==
A number of units were used to measure liquid capacity. Some other units and their legal equivalents are given below:
1 takar (for oil) = 25.770 L
1 kit (for oil) = 15.159 L
1 koelak (for oil) = 3.709 L
1 kan (for various products) = 1.575 L
1 mutsje (for various products) = 0.1516 L
1 pintje (for oil) = 0.0758 L.
=Sumatra=
Several local units were used in Sumatra.
==Length==
Units for length included:
1 etto = 2 jankal
1 hailoh = 2 etto
1 tung = 4 hailoh = 12 feet.{{Cite book|title = Weights Measures and Money of All Nations|last = Clarke|first = F.W.|publisher = D. Appleton & Company |year = 1891|location = New York|pages = 71}}
==Capacity==
==Mass==
=Java=
Several local units were used in Java. Old Dutch units too were in use, and other units were varied for example one town to another.:{{Cite book|title = Weights Measures and Money of All Nations|last = Clarke|first = F.W.|publisher = D. Appleton & Company |year = 1891|location = New York|pages = 49}}
==Length==
==Mass==
==Capacity==
=[[Sulawesi|Celebes]] (Modern Sulawesi)=
Units were resemble or identical with the units of neighbouring islands under Netherlands.{{Cite book|title = Weights Measures and Money of All Nations|last = Clarke|first = F.W.|publisher = D. Appleton & Company |year = 1891|location = New York|pages = 22}}
==Mass==
=[[Molucca]] Islands=
Dutch units and other units resembling the units in Java, Sumatra, etc. were used.{{Cite book|title = Weights Measures and Money of All Nations|last = Clarke|first = F.W.|publisher = D. Appleton & Company |year = 1891|location = New York|pages = 52–53}}