Ounces to Grams Calculator
This converts weight (dry) ounces, the kind used for solid ingredients and postage. It is not the same as fluid ounces, which measure volume. For fluid ounces, use a volume converter instead.
How to Convert Ounces to Grams
The formula is: grams = ounces × 28.35.
One ounce equals 28.349523125 grams, which rounds to 28.35. To convert ounces to grams, you multiply. For example, 4 ounces × 28.35 = 113.4 grams.
This is exact for every ingredient, because you are converting weight to weight. 8 ounces of flour and 8 ounces of sugar both weigh 226.8 grams. The ingredient makes no difference.
Ounces to Grams Conversion Table
| Ounces (oz) | Grams (g) |
|---|---|
| 0.5 oz | 14.17 g |
| 1 oz | 28.35 g |
| 2 oz | 56.70 g |
| 3 oz | 85.05 g |
| 4 oz | 113.40 g |
| 5 oz | 141.75 g |
| 6 oz | 170.10 g |
| 8 oz | 226.80 g |
| 10 oz | 283.50 g |
| 12 oz | 340.19 g |
| 14 oz | 396.89 g |
| 16 oz | 453.59 g |
Ounces to Grams Uses Weight, Not Fluid Ounces
Two kinds of ounces exist, and using the wrong one gives the wrong answer.
A dry ounce, or weight ounce, measures mass. This is what a kitchen scale shows and what recipes mean for solid ingredients. 1 dry ounce is 28.35 grams, and this calculator uses it.
A fluid ounce measures volume, not weight. 1 fluid ounce is about 29.57 ml. You cannot convert fluid ounces to grams without knowing the density of the liquid.
If your recipe says “8 oz butter” it means weight, and this converter is right. If it says “8 fl oz milk” it means volume, and you need a different tool.
Related Conversions
Frequently Asked Questions
How many grams is 1 ounce?
1 ounce is 28.35 grams, or more precisely 28.349523125 grams.
How many grams is 4 ounces?
4 ounces is 113.4 grams. Multiply any ounce amount by 28.35 to get grams.
How many grams is 8 oz?
8 ounces is 226.8 grams, which is half a pound.
How many grams in 16 oz?
16 ounces is 453.59 grams. Since 16 ounces is 1 pound, this is also the number of grams in a pound.