Peruvian units of measurement
{{Short description|Units of measurement used in Peru}}
A number of units of measurement were used in Peru to measure length, mass, area, etc. The Metric system adopted in 1862 and has been compulsory since 1869 in Peru.{{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|volume = 1|pages = 10 | url=https://books.google.com/books?id=zkErAAAAYAAJ&lpg=PA417&dq=international%20critical%20tables%201926&pg=PA10#q=international%20critical%20tables%201926 | access-date=8 February 2015}}{{Cite book|title = Encyclopaedia of Scientific Units, Weights and Measures. Their SI Equivalences and Origins.|url = https://archive.org/details/encyclopaediasci00card_043|url-access = limited|last = Cardarelli |first = F.|publisher = Springer|year = 2003|isbn = 978-1-4471-1122-1|location = London|pages = [https://archive.org/details/encyclopaediasci00card_043/page/n859 163]}}
System before metric system
=Length=
One vara was equal to 0.83598 m. One pie was equal to 0.27866 m/3 varas.
=Mass=
Several units were used to measure mass. One libra was equal to 0.46009 kg. Some other units are given below:
1 arroba = 25 libra
1 quintal = 100 libra
1 fanega = 140 libra.{{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 = 59}}