[1] : Easton's 1897 Bible Dictionary

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 kings 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.
   

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Weights, definition of term: Weights
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