# Mexican units of measurement

A number of units of measurement were used in Mexico to measure length, mass, area, capacity, etc. The Metric system was optional from 1857, and has been compulsory since 1896.^{[1]}^{[2]}

## Contents

## System before metric system[edit]

The Units of the system (from Spanish, Castillian) were legally defined during the transition period of the metric system.^{[1]}

## Length[edit]

A number of units were used. One vara (lit. "pole", "yard") was equal to 0.838 m (32.99 inches) as it was legally defined also use inches and feet.^{[1]} Some other units and legal equivalents are given below:

1 linea (lit. "line") = ^{1}⁄_{432} vara

1 pulgada (lit. "thumbful", "inch") = ^{1}⁄_{36} vara

1 pie (lit. "foot") = ^{1}⁄_{3} vara

1 milla (lit. "mile") = 5000 pies^{[3]}

1 legua (lit. "league") = 5000 varas.^{[1]}^{[3]}

## Mass[edit]

A number of units were used. One libra (lit. "pound") was equal to 0.46024634 kg as it was legally defined.^{[1]} Some other units and legal equivalents are given below:

1 tomin = ^{1}⁄_{768} libra

1 adarme = ^{1}⁄_{256} libra

1 ochava ("eighth") = ^{1}⁄_{128} libra

1 onza ("ounce") = ^{1}⁄_{16} libra

1 arroba = 25 libras

1 quintal ("hundredweight") = 100 libras

1 terco = 160 libras^{[1]}

## Area[edit]

A number of units were used. One fanega was equal to 35662.8 m^{2} as it was legally defined.^{[1]} Some other units and legal equivalents are given below:

1 caballeria = 12 fanegas

1 labor = 18 fanegas

1 sitio = 492.28 fanegas.^{[1]}^{[3]}

## Capacity[edit]

Two systems, dry and liquid, were used.

### Dry[edit]

Several units were used. One cuartillo (lit. "quart") was equal to 1.8918 l as it was legally defined.^{[1]}^{[3]} Some other units and legal equivalents are given below:

1 almud ("gallon") = 4 cuartillos

1 fanega = 48 cuartillos

1 carga = 96 cuartillos.^{[1]}^{[3]}

### Liquid[edit]

Several units were used. Some units and legal equivalents are given below:

1 cuartillo (for wine) = 0.456264 l

1 cuartillo (for oil) = 0.506162 l

1 jarra = 18 cuartillos.^{[1]}^{[3]}

One frasco was equal to 2 ^{1}⁄_{2} quarts, and one baril was equal to 20 gallons, with local variations.^{[4]}

## References[edit]

- ^
^{a}^{b}^{c}^{d}^{e}^{f}^{g}^{h}^{i}^{j}^{k}Washburn, E.W. (1926).*International Critical Tables of Numerical Data, Physics, Chemistry and Technology*.**1**. New York: McGraw-Hil Book Company, Inc. p. 9. Retrieved 8 February 2015. **^**Cardarelli, F. (2003).*Encyclopaedia of Scientific Units, Weights and Measures. Their SI Equivalences and Origins*. London: Springer. p. 7. ISBN 978-1-4471-1122-1.- ^
^{a}^{b}^{c}^{d}^{e}^{f}Cardarelli, F. (2003).*Encyclopaedia of Scientific Units, Weights and Measures. Their SI Equivalences and Origins*. London: Springer. pp. 164–165. ISBN 978-1-4471-1122-1. **^**Clarke, F.W. (1891).*Weights Measures and Money of All Nations*. New York: D. Appleton & Company. p. 51.