Peruvian units of measurement

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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.[1][2]

System before metric system

Units from Spanish Castillian were used.[1]


One vara was equal to 0.835 98 m.[1] One pie was equal to 0.278 66 m.[2]


Several units were used to measure mass. One libra was equal to 0.460 09 kg.[1][2] Some other units are given below:

1 arroba = 25 libra

1 quintal = 100 libra

1 fanega = 140 libra.[1][2][3]


One topo was equal to 2706 m2.[1] One fanegada was equal to 6459.6 m2.[1]


  1. ^ a b c d e f g Washburn, E.W. (1926). International Critical Tables of Numerical Data, Physics, Chemistry and Technology. 1. New York: McGraw-Hil Book Company, Inc. p. 10. Retrieved 8 February 2015.
  2. ^ a b c d Cardarelli, F. (2003). Encyclopaedia of Scientific Units, Weights and Measures. Their SI Equivalences and Origins. London: Springer. p. 163. ISBN 978-1-4471-1122-1.
  3. ^ Clarke, F.W. (1891). Weights Measures and Money of All Nations. New York: D. Appleton & Company. p. 59.
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