How to convert grams to troy ounces
- Take the value in grams.
- Use the formula troy ounces = grams × 0.03215074657.
- For example, 1 g is 0.0322 oz t.
About grams and troy ounces
Divide grams by 31.1035 to get troy ounces, or multiply by 0.0321507. A 100 g bar is 3.215 oz t, a 250 g bar 8.04 oz t and a 1 kg bar 32.15 oz t.
Bars and scrap jewelry are often weighed in grams, while the spot price for precious metals is quoted per troy ounce. Converting the weight lets you work out what a bar or a piece of jewelry is worth at today’s price. For jewelry, multiply by the purity first: 18K gold is 75% gold.
Examples
- 1 g (a one-gram gold bar) is 0.0322 oz t
- 31.1 g (one troy ounce) is 1 oz t
- 100 g (a 100 g bar) is 3.22 oz t
- 1,000 g (a one-kilo bar) is 32.15 oz t
Grams to troy ounces chart
| Grams (g) | Troy ounces (oz t) |
|---|---|
| 1 | 0.0322 |
| 2 | 0.0643 |
| 2.5 | 0.0804 |
| 5 | 0.161 |
| 10 | 0.322 |
| 15 | 0.482 |
| 20 | 0.643 |
| 25 | 0.804 |
| 31.1 | 1 |
| 50 | 1.61 |
| Grams (g) | Troy ounces (oz t) |
|---|---|
| 62.2 | 2 |
| 100 | 3.22 |
| 150 | 4.82 |
| 200 | 6.43 |
| 250 | 8.04 |
| 311.04 | 10 |
| 500 | 16.08 |
| 1,000 | 32.15 |
| 5,000 | 160.75 |