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Convert fluid ounces to cups (fl oz to cup)

Type a value in fluid ounces or in cups: the other field updates as you type. Below you will find the formula, a worked example and a fl oz to cup chart.

Updated on

1 fl oz = 0.125 cup

How to convert fluid ounces to cups

Formula: cup = fl oz ÷ 8

Worked example: 12 fl oz → 12 ÷ 8 = 1.5 cup

Fluid ounces to cups conversion chart

Fluid ounces (fl oz)Cups (cup)
1 fl oz0.125 cup
2 fl oz0.25 cup
3 fl oz0.375 cup
4 fl oz0.5 cup
5 fl oz0.625 cup
6 fl oz0.75 cup
7 fl oz0.875 cup
8 fl oz1 cup
9 fl oz1.125 cup
10 fl oz1.25 cup
12 fl oz1.5 cup
15 fl oz1.875 cup
20 fl oz2.5 cup
25 fl oz3.125 cup
30 fl oz3.75 cup
40 fl oz5 cup
50 fl oz6.25 cup
75 fl oz9.375 cup
100 fl oz12.5 cup
250 fl oz31.25 cup
500 fl oz62.5 cup
1,000 fl oz125 cup

What is a fluid ounce?

The US fluid ounce is 1/128 of a US gallon, about 29.57 ml. It measures drinks and liquid ingredients: a soda can holds 12 fl oz. It is a volume, unlike the ounce on a scale, and slightly larger than the imperial fluid ounce.

What is a cup?

The US customary cup holds 8 fluid ounces, about 236.6 ml. Nutrition labels use a rounded 240 ml cup, and Canada and Australia use a 250 ml metric cup. In baking, measure dry ingredients level, or better, weigh them.

Frequently asked questions

How many cups are in a fluid ounce?

A fluid ounce equals 0.125 cups. To convert any value, multiply the number of fluid ounces by 0.125.

How do you convert fluid ounces to cups?

Use the formula cup = fl oz ÷ 8. Example: 12 fl oz → 12 ÷ 8 = 1.5 cup.

How many fluid ounces are in a cup?

A cup equals 8 fluid ounces. That is the reverse conversion, from cups to fluid ounces.

Results are rounded to 6 significant digits; the conversion factors are the exact legal definitions.