Pennyweight Conversion Chart
Pennyweights (DWT) and other troy weights are routinely used in the US jewelry industry whereas outside the United States, grams and other metric weights are also used. With prices set per troy ounce by the London fix, calculating a pennyweight gold price on the spot can be tricky.
Need to convert pennyweights to grams? Grams to troy ounces? Troy ounces to pennyweights? Download your print quality (pdf) pennyweight conversion chart from Manhattan Gold & Silver.
| |
Pennyweight |
Grams |
Kilograms |
Grains weight |
Troy ounces |
Troy Pounds |
Avoirdupois ounces |
Avoirdupois pounds |
Karats |
| 1 pennyweight |
1 |
1.552 |
0.0016 |
24 |
0.05 |
0.004166667 |
0.0549 |
0.003428 |
7.77587 |
| 1 gram |
0.64 |
1 |
0.001 |
15.43 |
0.0322 |
0.002679241 |
0.0353 |
0.002204 |
5 |
| 1 kilogram |
643.01 |
1000 |
1 |
15432 |
32.151 |
2.67922 |
35.274 |
2.20462 |
5000 |
| 1 grain |
0.04 |
0.06 |
0.00006 |
1 |
0.002 |
0.000173 |
0.0229 |
0.000142 |
0.323995 |
| 1 troy oz |
20 |
31.104 |
0.03115 |
480 |
1 |
0.083333 |
1.0971 |
0.068571 |
155.517 |
| 1 troy lb |
240 |
373.24 |
0.3732 |
5760 |
12 |
1 |
13.166 |
0.822857 |
1866.208 |
| 1 oz avoid |
18.230 |
28.35 |
0.0284 |
437.52 |
0.912 |
0.075954 |
1 |
0.062499 |
141.747 |
| 1 lb avoid |
291.68 |
453.59 |
0.4536 |
7000.32 |
14.583 |
1.21527 |
16 |
1 |
2267.961 |
| 1 karat |
0.13 |
0.2 |
0.0002 |
3.09 |
0.00643 |
0.000535 |
0.00705 |
0.00044 |
1 |
Although the metric system is referred to as the international system of units, Troy weight is still the traditional unit of weight used for precious metals and the jewelry industry. In the bullion market, all references to ounces mean troy ounces. The troy ounce differs from the more common (avoirdupois) ounce used in the United States and in the UK, being somewhat heavier, with 1 troy oz = 1.097 oz. Reference our Pennyweight (DWT) Conversion Chart to find these and other commonly used gold weight conversions.
Download your Pennyweight Conversion Chart (pdf)