Grams to pennyweights
Type a value in grams to see it in pennyweights straight away, or type in the second box to convert back.
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How to use it
- Type the value in the grams box.
- Read the result in pennyweights as you type, and pick the precision you need.
- Swap the direction to convert back, or copy the result.
How it is calculated
dwt = g × 0.6430149314
Multiply the value in grams by 0.6430149314 to get pennyweights.
Example
To convert 25 g to pennyweights: 25 × 0.6430149314 = 16.0754 dwt.
Conversion table
| Grams (g) | Pennyweights (dwt) |
|---|---|
| 1 | 0.643015 |
| 2 | 1.28603 |
| 3 | 1.92904 |
| 5 | 3.21507 |
| 10 | 6.43015 |
| 20 | 12.8603 |
| 25 | 16.0754 |
| 50 | 32.1507 |
| 100 | 64.3015 |
| 250 | 160.754 |
| 500 | 321.507 |
| 1,000 | 643.015 |
About the units
- Gram
- One thousandth of a kilogram, the usual unit for weighing gold and food.
- Pennyweight
- A troy unit for precious metals equal to 24 grains, or 1.55517384 grams, which is 1/20 of a troy ounce.
Limits and caveats
- Results are rounded for display and computed with the browser's floating point precision (about 15 significant digits).
- Both unit factors are exact by their official definitions.
Questions about this tool
How many pennyweights are in one gram?
1 g = 0.643015 dwt exactly.
How do I convert grams to pennyweights?
Use dwt = g × 0.6430149314. For example, 25 g = 16.0754 dwt.
How many grams are in one pennyweight?
1 dwt = 1.55517 g.
Are mass and weight the same thing?
Strictly no: mass is the amount of matter, in kilograms, while weight is the force of gravity on it, in newtons. Scales display mass, so everyday language uses the two words interchangeably.
What is the difference between an ounce and a troy ounce?
An ordinary ounce is 28.349523125 grams and is used for food and goods, while a troy ounce is 31.1034768 grams and is used to price gold and silver.