Easton's Bible Dictionary: M. G. Easton, M.A., D.D.

Weights

Reduced to English troy-weight, the Hebrew weights were:

1. The gerah (Lev. 27:25; Num. 3:47), a Hebrew word, meaning a grain or kernel, and hence a small weight. It was the twentieth part of a shekel, and equal to 12 grains.
2. Bekah (Ex. 38:26), meaning "a half" i.e., "half a shekel," equal to 5 pennyweight.
3. Shekel, "a weight," only in the Old Testament, and frequently in its original form (Gen. 23:15, 16; Ex. 21:32, 30:13, 15, 38:24-29, etc.). It was equal to 10 pennyweight.
4. Ma'neh, "a part" or "portion" (Ezek. 45:12), equal to 60 shekels, i.e., to 2 lbs. 6 oz.
5. Talent of silver (2 Ki. 5:22), equal to 3, 000 shekels, i.e., 125 lbs.
6. Talent of gold (Ex. 25:39), double the preceding, i.e., 250 lbs.