Ounces to Grams Converter
Use the first converter for dry ingredients and the second for liquids.
Dry ingredients (weight)
- Ounces (oz)
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- Pounds (lb)
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- Grams (g)
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- Kilograms (kg)
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Liquids (fluid ounces)
- Teaspoons (tsp)
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- Tablespoons (tbsp)
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- Fluid ounces (fl oz)
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- US cups
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- US pints
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- Milliliters (ml)
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- Liters (l)
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How it works
Formulas and reference values: how we convert. Want it on paper? Get the printable chart.
The word ounce is confusing because it has two meanings. A weight ounce, used for dry ingredients, is about 28.35 grams. A fluid ounce measures volume and is about 29.57 milliliters. Water happens to weigh almost the same in both, but most ingredients do not: a cup of flour is 8 fluid ounces yet weighs only about 4.2 ounces.
Use the first converter for dry ingredients measured by weight, such as flour, sugar, chocolate or nuts. Use the second converter for liquids measured by volume, such as milk, juice or cream. If a recipe just says ounces next to a liquid, it almost always means fluid ounces.
Conversion chart
| Ounces | Dry: grams | Liquid: ml |
|---|---|---|
| 1 oz | 28 g | 30 ml |
| 2 oz | 57 g | 59 ml |
| 4 oz | 113 g | 118 ml |
| 6 oz | 170 g | 177 ml |
| 8 oz | 227 g | 237 ml |
| 12 oz | 340 g | 355 ml |
| 16 oz | 454 g | 473 ml |
Frequently asked questions
How many grams are in an ounce?
One ounce is 28.35 grams. For quick estimates, many people round it to 28 g.
What is the difference between ounces and fluid ounces?
Ounces measure weight and fluid ounces measure volume. A cup of water is 8 fl oz and weighs about 8.3 oz, but a cup of flour is also 8 fl oz and weighs only about 4.2 oz.
How many ounces are in a pound?
There are 16 ounces in a pound, which is about 454 grams.
How many ounces are in a cup?
A cup is 8 fluid ounces. By weight it depends on the ingredient, for example about 4.2 oz of flour or 7 oz of sugar.