Gold Weight Converter
Convert between grams, troy ounces, regular ounces, pounds, and kilograms. Gold is typically quoted per troy ounce (31.1035g), so using the right “ounce” matters.
Weight Converter
Convert between grams, ounces, pounds
Equivalent to:
Gold Ounce vs Troy Ounce (ozt) — Why It’s Different
Precious metals are priced in troy ounces (ozt). A troy ounce is 31.1035g. A regular ounce (avoirdupois) is 28.3495g. If you use the wrong ounce, your gold weight (and value estimate) will be off by about 9.7%.
Troy ounce (ozt)
Used for gold, silver, and platinum spot prices and bullion specs.
1 ozt = 31.1035 g
Avoirdupois ounce (oz)
Used for everyday weight (food, parcels, general scales).
1 oz = 28.3495 g
In bullion listings, “gold ounce” almost always means troy ounce. On a general-purpose scale, “oz” usually means avoirdupois.
Pennyweight (dwt) and Grains — Common Jewelry Units
Some jewelers and scrap buyers still use pennyweight (dwt) and grains (gr). These belong to the troy system: 20 dwt = 1 troy ounce, and 24 gr = 1 dwt.
| Unit | Equals | Notes |
|---|---|---|
| 1 troy ounce (ozt) | 31.1035 g | Precious metals market standard |
| 1 pennyweight (dwt) | 1.5552 g | 1 dwt = 1/20 ozt |
| 1 grain (gr) | 0.0648 g | 24 gr = 1 dwt |
Quick Conversion Table (Most-Used)
Quick reference for common conversions used in “troy ounce to grams” and “gold ounce vs troy ounce” searches.
| Input | Grams (g) | Troy ounces (ozt) | Ounces (oz) |
|---|---|---|---|
| 1 ozt | 31.1035 | 1 | 1.0971 oz |
| 1 oz | 28.3495 | 0.9115 ozt | 1 |
| 10 g | 10 | 0.3215 ozt | 0.3527 oz |
| 1 kg | 1000 | 32.1507 ozt | 35.2740 oz |
| 1 lb | 453.592 | 14.5833 ozt | 16 oz |
FAQ
1 troy ounce (ozt) = 31.1035 grams. Precious metals like gold and silver are quoted in troy ounces, not regular ounces.
A “gold ounce” usually means a troy ounce (31.1035g). A regular (avoirdupois) ounce is 28.3495g. Mixing them up can cause about a 9.7% error.