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Fluid ounces to Cups Converter fl oz → cup

1 fluid ounce (us) (fl oz) = 0.125 cups (cup). Type a value below — the conversion happens instantly, entirely on your device.

1 fl oz = 0.125 cup

1 fluid ounces = 0.125 cups

1 × 0.125 = 0.125

1 fl oz equals 0.125 cup, so multiplying by 0.125 converts the value. The result describes the exact same quantity — only the measuring stick changes.

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How to convert fluid ounces to cups

cups = fluid ounces × 0.125 — multiply the fluid ounce (us) value by 0.125.

Example: 10 fl oz = 1.25 cup.

To convert the other way: fluid ounces = cups ÷ 0.125 — or use the dedicated cup to fl oz converter .

Fluid ounces to Cups conversion table

Fluid ounces (fl oz) Cups (cup)
0.1 0.0125
0.25 0.03125
0.5 0.0625
1 0.125
2 0.25
3 0.375
4 0.5
5 0.625
6 0.75
7 0.875
8 1
9 1.125
10 1.25
15 1.875
20 2.5
25 3.125
30 3.75
40 5
50 6.25
75 9.375
100 12.5
250 31.25
500 62.5
1000 125

About the units

What is a fluid ounce (us)?

A US fluid ounce (fl oz) is exactly 29.5735 mL — 1/8 of a US cup. Drink sizes and cosmetics are commonly labeled in fluid ounces. (The UK fluid ounce is slightly smaller: 28.41 mL.)

What is a cup (us)?

A US cup is exactly 236.588 mL — 8 US fluid ounces or 16 tablespoons. It is the foundational measure of American recipes. (A metric cup, used in Australia, is 250 mL.)

Frequently asked questions

How many cups are in 1 fluid ounce (us)?

1 fluid ounce (us) (fl oz) = 0.125 cups (cup).

What is the formula to convert fluid ounces to cups?

cups = fluid ounces × 0.125 — multiply the fluid ounce (us) value by 0.125.

How do I convert fl oz to cup without a calculator?

Multiply by 0.125 for a close estimate. Exact factor: 1 fl oz = 0.125 cup.

Is this fl oz-to-cup converter accurate and private?

Yes. It uses the exact internationally defined conversion factors and computes results locally in your browser — your input is never sent to a server, and the page keeps working offline.

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