Measurement System
Easy to use converter for metric weight units.
Convert to grains, carats, pennyweights, ounces, pounds and more.
TROY WEIGHT
Used in weighing the precious metals.
| 24 grains = 1 pennyweight (DWT) |
| 20 dwt = 1 ounce Troy |
| 12 ounces = 1 pound Troy |
| 5,760 grains = 1 pound Troy |
| 480 grains = 1 ounce Troy |
| 1 kilogram = 2.68 pounds |
| 1 kilogram = 32.15 ounce Troy |
| 1 kilogram = 35.2740 ounce Avoir |
| 1 kilogram = 15,432 grains |
| Troy oz. = 1.0972 ounce Avoir |
CARAT WEIGHT
Used in weighing the precious and semi-precious stones.
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| 1 carat = 31⁄16 grains Troy |
| 1 carat = .007 oz. Avoir |
| 1 carat = 1⁄5 gram |
| The carat is further divided into points for simple measurement: |
| 1 carat = 100 points |
| 1⁄2 carat = 50 points |
| 1⁄4 carat = 25 points |
| 1⁄8 carat = 121⁄2 points |
AVOIRDUPOIS WEIGHT
Used in weighing base metals.
| 16 drams (or drachms) = 1 oz. |
| Avoir 16 ounces = 1 pound Avoir |
| 16 ounces = 7,000 grams |
| 28 pounds = 1 quarter English |
| 4 quarters = 1 hundredweight (cwt.) |
| 20 hundredweight = 1 ton Avoir |
| 1 pound Avoir = 14.5833 Troy oz. |
| 1 ounce Avoir = 0.914 Troy oz. |
| 1 pound Avoir = 7,000 grains |
| 1 ounce Avoir = 437.5 grains |
GRAM WEIGHT
| 1 gram = 15.43 grains Troy |
| 1.55 grams = 1 pennyweight (DWT) |
| 31.104 grams = 1 ounce Troy |
| 28.35 grams = 1 ounce Avoir |
| 1 grain = 0.0648 grams |
| 1 grain = 64.80 milligrams |
| 1 milligram = .015432 grams |
| 1 gram = .035274 Avoir oz. |
| 1 gram = .032151 Troy oz. |
| Troy oz. = 1.0972 ounce Avoir |
Weight Conversions
For more answers about precious metals, tools, and more call our Tools Tech Team at 800-877-7777 ext. 4300.
