Everything you need to know about measuring grams, from terms and origin to how many grams are in an ounce.
There are 28.346 grams in an ounce. This is the same regardless of what you’re measuring, because both ounces and grams are methods of measuring weight. So whether the question is “how many grams are in an ounce of silver”, “gold”, or even “protein”, the answer is always 28 grams!
What Is An Ounce?
The term ounce comes from the Roman term “uncia.” An uncia was 1/12th of a roman copper bar that was used as a tool to measure the length of an inch and the weight of an ounce. Modern ounce weight and volume measurements, however, come from Britain. A fluid ounce is 1/16th of a pint. A dry ounce weighs 1/16 of a pound, or 28.346 grams.
The only nations still using ounces are the United States, Liberia, and Mayanmar.
What Is A Gram?
The gram was introduced in France following the French Revolution. The word gramme was adopted by the French in a 1795 decree revising the metric system and defining the gram as the weight of one cubic centimeter of water. The French went all in on the metric system then.
Quick Conversions
These conversions are important because recipes developed outside the United States call for grams vs ounces, and in baking precise ingredient quantities can be important. Here are some commonly found recipe quantities converted to ounces! (related: grams to pounds)
Grams to Ounces
| Grams | Ounces |
|---|---|
| 15 g | 0.53 oz |
| 30 g | 1.06 oz |
| 60 g | 2.12 oz |
| 100 g | 3.53 oz |
| 150 g | 5.29 oz |
| 200 g | 7.05 oz |
| 300 g | 10.58 oz |
| 400 g | 14.11 oz |
| 500 g | 17.64 oz |
| 1000 g | 35.27 oz |
Ounces to Grams
| Ounces | Grams |
|---|---|
| 1 oz | 28 g |
| 2 oz | 57 g |
| 3 oz | 85 g |
| 4 oz | 113 g |
| 5 oz | 142 g |
| 6 oz | 170 g |
| 7 oz | 198 g |
| 8 oz | 227 g |
| 9 oz | 255 g |
| 10 oz | 283 g |
| 11 oz | 312 g |
| 12 oz | 340 g |
| 13 oz | 369 g |
| 14 oz | 397 g |
| 15 oz | 425 g |
| 16 oz | 454 g |
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