Updated 31 July 2026 · Written by Sofia Romano
There are about 28 grams in an ounce, more precisely 28.35 grams. For cooking, rounding to 28 grams per ounce is accurate enough. So 4 ounces is roughly 113 grams and 16 ounces, a pound, is about 454 grams.
1 ounce = about 28 grams (28.35 exactly). 1 pound (16 oz) = about 454 g.
The Exact Figure
One ounce equals 28.35 grams. In recipes, 28 grams per ounce is close enough, and using a scale in grams is more precise than measuring by volume.
Scaling Up
Four ounces is about 113 grams, half a pound is 227 grams, and a full pound is 454 grams. Weighing ingredients removes the guesswork of cup measures.
Ounces to Grams
| Ounces | Grams |
|---|---|
| 1 oz | 28 g |
| 4 oz | 113 g |
| 8 oz | 227 g |
| 16 oz (1 lb) | 454 g |
Frequently Asked Questions
How many grams in an ounce exactly?
One ounce is 28.35 grams. Most cooking rounds this to 28 grams per ounce.
Why weigh in grams instead of ounces?
Grams are a smaller, more precise unit, so weighing in grams gives more accurate results, especially in baking.
