Older units before the Metric system were British, old French, and Spanish.[1]
Length
Several units were used in Haiti. One toise was 1.9488 m and one anne was 1.188 m, according to the legal equivalents during the transition period to metric system.[1][2]
Area
One carreau was equal to 1292.3 square meters according to the legal equivalents during the transition period to metric system.[1]
Volume
Several units were used to measure volume. Some units and their equivalents according to the transition period, are given below:[1][2]
^ abcdeWashburn, E.W. (1926). International Critical Tables of Numerical Data, Physics, Chemistry and Technology. New York: McGraw-Hil Book Company, Inc. p. 8.