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How many grams in an ounce?
1 ounce = 28.35 grams. That's the weight ounce (avoirdupois). Convert below.
Weight28.35grams
| Ounces | Grams |
|---|---|
| 1 oz | 28.35 g |
| 2 oz | 56.70 g |
| 4 oz | 113.40 g |
| 8 oz | 226.80 g |
| 16 oz (1 lb) | 453.59 g |
Weight ounces ≠ fluid ounces. This page is about weight (28.35 g). A fluid ounce measures volume — see fluid ounces to ml.
Frequently asked questions
How many grams in an ounce?
One ounce is 28.35 grams.
How many grams in 8 oz?
8 ounces is 226.8 grams.
Is an ounce the same as a fluid ounce?
No. A weight ounce is 28.35 g; a fluid ounce measures volume (29.57 ml in the US).