Ounces to grams (oz → g)

1 ounce (oz) = 28.35 g. 4 oz ≈ 113 g, 8 oz ≈ 227 g, 16 oz = 1 lb ≈ 454 g.

Ounces measure weight in American and British recipes – cheese, chocolate, meat or package sizes. The conversion is simple: one ounce is 28.35 grams.

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Amount
Result

Ounces to grams

AmountGrams
½ oz14.2 g
1 oz28 g
2 oz57 g
3 oz85 g
4 oz113 g
5 oz142 g
6 oz170 g
7 oz198 g
8 oz227 g
10 oz283 g
12 oz340 g
14 oz397 g
16 oz454 g

Ounces or fluid ounces?

oz is weight. fl oz (fluid ounce) is volume: 29.6 ml in the US, 28.4 ml in the UK. So “8 oz cream cheese” is 227 g, while “8 fl oz milk” is 237 ml – exactly one cup. See cups and fl oz to ml.

Common US package sizes

Frequently asked questions

How many grams are in 6 oz?

6 oz is 170 g.

How many ounces are in a pound?

A pound (lb) has 16 ounces and weighs 454 g. See pounds to grams.

Is an ounce always 28.35 g?

In cooking, yes. The troy ounce used for gold and silver is 31.1 g, but it's never used in recipes.

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