Mass & weight
Grams to ounces
One ounce is about 28.35 grams. Just don’t confuse it with the fluid ounce — that measures volume, not weight.
Quick answer
Multiply grams by 0.035274 to get ounces. To reverse it, multiply ounces by 28.349523.
The formula
ounces = grams × 0.035274
grams = ounces × 28.349523
Weight ounce vs fluid ounce
This guide is about the avoirdupois ounce, a unit of weight (16 to a pound). A fluid ounce is a unit of volume used for liquids. A recipe asking for “8 oz of flour” means weight; “8 fl oz of milk” means volume — don’t swap them.
Worked examples
- 100 g → oz: 100 × 0.035274 = 3.53 oz.
- 250 g of butter: ≈ 8.82 oz.
- 1 pound: 16 oz = 453.6 g.
| Grams | Ounces |
|---|---|
| 1 | 0.035 |
| 10 | 0.353 |
| 28.35 (1 oz) | 1.000 |
| 100 | 3.527 |
| 250 | 8.818 |
| 500 | 17.637 |
Frequently asked questions
How many grams are in an ounce?
One ounce (weight) is about 28.35 grams.
Is this the same as a fluid ounce?
No — be careful. A weight ounce (28.35 g) measures mass; a fluid ounce measures volume (about 29.6 ml in the US). They are different things.
What is 8 oz in grams?
8 × 28.349523 = 226.8 g (about half a pound).
How do I convert grams to ounces?
Multiply grams by 0.035274 (or divide by 28.35).