Puerto Rican units of measurement

Several units of measurements were used in Puerto Rico. Metric system has been compulsory since 1860 in Puerto 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 cuerda was equal to 2250 vara²(1572 m²).^[1]

1 2 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.

Current

General	International System of Units (SI) UK imperial system US customary units Burmese Indian

Specific	Apothecaries' Avoirdupois Troy Astronomical Electrical Temperature

Natural	Atomic Geometrised Gaussian Lorentz–Heaviside Planck Quantum chromodynamical Stoney

Background

Metric	Overview Introduction Outline History Metrication

UK/US	Overview Comparison

Historic

Metric	Metre–kilogram–second Metre–tonne–second Centimetre–gram–second Gravitational

Europe	Byzantine Cornish Cypriot Czech Danish Dutch English Estonian Finnish French (Trad. • Mesures usuelles) German Greek Hungary Icelandic Irish Scottish Italian Latvia Luxembourgian Maltese Norwegian Ottoman Polish Portuguese Romanian Russian Serbian Slovak Spanish Swedish Switzerland Welsh Winchester measure

Asia	Afghan Cambodian Chinese Hindu Hong Kong India Indonesian Japanese Omani Philippine Pegu Singaporean Sri Lankan Syrian Taiwanese Tatar Thai Vietnamese

Africa	Algerian Ethiopian Egyptian Eritrean Guinean Libyan Malagasy Mauritian Moroccan Seychellois Somalian South African Tunisian Tanzanian

North America	Costa Rican Cuban Haitian Honduran Mexico Nicaraguan Puerto Rican

South America	Argentine Brazilian Chilean Colombian Paraguayan Peruvian Uruguayan Venezuelan

Ancient

List articles

Other

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