A number of units were used to measure mass. As in 1920s too, some units were derived from the metric system. One libra was equal to 0.500 kg (i.e. 500 g) (or 0.54354 kg). Some other units are provided below:
Several units were used to measure area. As in 1920s too, some units were derived from metric system. one vara2 was equal to 0.64 m2, and one fanegada was equal to 10,000 vara2
^ abcdWashburn, E.W. (1926). International Critical Tables of Numerical Data, Physics, Chemistry and Technology. New York: McGraw-Hil Book Company, Inc. pp. 4, 5.
^ abcdeCardarelli, F. (2003). Encyclopaedia of Scientific Units, Weights and Measures. Their SI Equivalences and Origins. London: Springer. pp. 158, 159. ISBN978-1-4471-1122-1.
^Clarke, F.W. (1891). Weights Measures and Money of All Nations. New York: D. Appleton & Company. p. 24.
^ abAbad, L.A.; Davies, E.; Zanden, J.L.v. (1891), Between conquest and independence: Real wages and demographic change in Spanish America, 1530-1820 (in the journal, Explorations in Economic History), Middlebury College, United States and Utrecht University, The Netherlands: elsevier, p. 15