Kitchen reference
How many grams in an ounce?
One ounce equals 28.35 grams(28.3495 g to be exact). This is a weight conversion, so it's the same for every ingredient — unlike fluid ounces, which measure volume.
1 oz = 28.35 g. To go from ounces to grams, multiply by 28.35. To go from grams to ounces, divide by 28.35.
| Ounces | Grams |
|---|---|
| 0.5 oz | 14.2 g |
| 1 oz | 28.3 g |
| 2 oz | 56.7 g |
| 3 oz | 85 g |
| 4 oz | 113.4 g |
| 5 oz | 141.7 g |
| 8 oz | 226.8 g |
| 10 oz | 283.5 g |
| 12 oz | 340.2 g |
| 16 oz | 453.6 g |
28.35 grams
1 ounce = 28.35 grams
The exact conversion
The international avoirdupois ounce is defined as exactly 28.349523125 grams. For everyday cooking and baking, 28.35 g — or even a round 28 g — is close enough. When precision matters, use a scale set to grams.
Frequently asked questions
How many grams in an ounce?
One avoirdupois ounce equals 28.3495 grams, usually rounded to 28.35 g or 28 g for cooking.
How many grams in a pound?
A pound is 16 ounces, which is about 453.6 grams.
Is a fluid ounce the same as an ounce in grams?
No. A fluid ounce measures volume, not weight, so it cannot be converted to grams without knowing the ingredient's density. This page covers weight ounces.