Online Encyclopedia of Silver Marks, Hallmarks & Makers' Marks
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Weight Conversion Calculator - Precious Metals

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Precious Metal Weight Conversion Calculator

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The ounce weight in common usage is the "ounce avoirdupois" (29.349523125 grams). The "troy ounce" (31.1034768 grams) is used to measure the weights of precious metals. Consequently, an ounce of silver or gold is not the same weight as an ounce of cheese or paper. If you are using a kitchen or postal scale (avoirdupois weight) to measure the weight of your silver or gold, you can use the conversion application below the find the proper measure in troy weight or, if you prefer, grams.

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