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.
The Units of the system (from Spanish, Castillian) were legally defined during the transition period of the metric system.
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. 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
1 legua (lit. "league") = 5000 varas.
A number of units were used. One libra (lit. "pound") was equal to 0.46024634 kg as it was legally defined. 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
A number of units were used. One fanega was equal to 35662.8 m2 as it was legally defined. Some other units and legal equivalents are given below:
1 caballeria = 12 fanegas
1 labor = 18 fanegas
Two systems, dry and liquid, were used.
Several units were used. One cuartillo (lit. "quart") was equal to 1.8918 L as it was legally defined. Some other units and legal equivalents are given below:
1 almud ("gallon") = 4 cuartillos
1 fanega = 48 cuartillos
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
One frasco was equal to 2+1⁄2 quarts, and one baril was equal to 20 gallons, with local variations.
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