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.

From

1 fl oz = 0.125 cup

Precision

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.