| GRAIN | GRAM | DWT TROY | OZ TROY | OZ AV |
| GRAIN | 1.0000 | 0.0648 | 0.0417 | 0.0021 | 0.0023 |
| GRAM | 15.4324 | 1.0000 | 0.6430 | 0.0321 | 0.0353 |
| DWT TROY | 24.0000 | 1.5552 | 1.0000 | 0.0500 | 0.0549 |
| OUNCE TROY | 480.0000 | 31.1035 | 20.0000 | 1.0000 | 1.0971 |
| OUNCE AV. | 437.5000 | 28.3495 | 18.2292 | 0.9115 | 1.0000 |
To convert: • Avordupois Ounces to Troy ounces multiply by .91 • Avordupois Ounces to pennyweight multiply by 18.2 • Avordupois ounces to grams multiply by 28.35 • Troy ounces to grams multiply by 31.1 • Troy ounces to pennyweight multiply by 20 • Troy ounces to pounds troy, divide by 12 • Pennyweight to grams multiply by 1.56 • Pennyweight to troy ounces multiply by .05 (or divide by 20) • Grams to pennyweight multiply by .64 • Grams to troy ounces multiply by .032 • Grams to carats multiply by 5 • Carats to grams multiply by .2 (or divide by 5) • Carats to "Points" multiply by 100. • "Points" to carats multiply by .01 (or divide by 100) Weight Conversion Chart for Silver, Gold and Gems Troy Weight - gold and silver are measured in Troy weight, a system that includes pennyweights, ounces and pounds. The ounces and pounds do not equal the Avordupois or customary U.S. system that other common goods are measured in. For example a troy ounce weighs about 10 percent more than a Avordupois ounce. • 24 grains = 1 pennyweight = 1.5552 grams • 1 gram = .64 pennyweight • 1 pennyweight = 1.56 grams or .05 troy ounce • 20 pennyweight = 1 troy ounce = 31.1035 grams • 12 ounces = 1 pound troy = 373.24 grams. |
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