Ounces to Grams Converter

Convert ounces to grams quickly and accurately. Type a weight in ounces and the equivalent in grams appears instantly.

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Ounces

Grams

Formula

To convert ounces to grams, multiply the value by 28.349523125.

1 oz = 28.3495 g

grams = ounces × 28.349523125

About ounces and grams

The gram is the metric unit used in recipes, nutrition labels and postage across most of the world.

The ounce is its imperial counterpart in American and British cooking. Sixteen ounces make a pound, which is why recipe conversions so often land on awkward decimals.

Accuracy

This uses the avoirdupois ounce of exactly 28.349523125 grams — the one used for food and general weighing. The troy ounce used for precious metals is different at 31.103 grams, so gold prices do not convert with this factor.

Ounces to Grams conversion table

Ounces	Grams
1 oz	28.3495 g
2 oz	56.699 g
4 oz	113.3981 g
8 oz	226.7962 g
12 oz	340.1943 g
16 oz	453.5924 g
20 oz	566.9905 g
24 oz	680.3886 g
32 oz	907.1847 g
64 oz	1,814.3695 g

Frequently asked questions

How do you convert ounces to grams?

Grams = ounces × 28.349523125. For example, 1 oz equals 28.3495 g.

How many grams is 1 ounce?

One ounce is 28.3495 grams, normally rounded to 28 g in recipes.

How many grams is 8 ounces?

8 ounces — half a pound — is 226.7962 grams, usually given as 227 g.

Are fluid ounces the same as ounces?

No, and confusing them is a common cooking error. An ounce measures weight; a fluid ounce measures volume. They only coincide for water, and only approximately.