How many ounces are in a cup?

A US cup is 8 fluid ounces, about 237 ml. A metric cup is 250 ml.

Quick conversions

Amount	Equals
1 US cup	8 fl oz, about 237 ml
1 metric cup	250 ml
1/2 US cup	4 fl oz, 8 tablespoons
1/4 US cup	2 fl oz, 4 tablespoons
2 US cups	1 US pint, 16 fl oz

Fluid ounces are not weight ounces

A fluid ounce measures space; an ounce on kitchen scales measures weight. Water happens to be close to the same for both, but flour, sugar and butter are not. For baking, weigh dry ingredients.

When a live helper is useful

A baker on video can talk you through converting a recipe from cups to grams.

Frequently asked questions

How many cups are in a pint?

A US pint is 2 cups, or 16 US fluid ounces.

Is a cup of flour 8 ounces?

No. 8 fluid ounces measures volume, not weight. A cup of plain flour weighs roughly 120 to 125 grams, around 4.3 ounces.

How many tablespoons are in half a cup?

Half a US cup is 8 tablespoons.

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