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Puerto Rican units of measurement

Several units of measurements were used in Puerto Rico. Metric system has been compulsory since 1860 in Porto Rico.[1]

System before metric system

Several units were used before metric adoption. These units were older Spanish units.


Several units were used to measure area. One cuerdo was equal to 2250 vara2(1572 m2).[1]


  1. 1.0 1.1 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.