Fluid Ounces (US) to Cups (US)

Convert fl oz to cups instantly — formula, worked examples and a conversion table of common values.

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About the Fluid Ounces (US) to Cups (US)

Convert fluid ounces (us) (fl oz) to cups (us) (cups). Enter a value on either side and the other updates instantly — nothing is sent to a server.

One US fluid ounce equals 0.125 cups. The table below lists the values people look up most often, and each one links to a page with the worked calculation.

Fluid Ounces (US) to Cups (US) formula

cups = fl oz ÷ 8

Fluid ounce (US) to cup (us) conversion table

Fluid ounce (US) (fl oz)	Cup (US) (cup)
0.1	0.0125
0.5	0.0625
1	0.125
2	0.25
3	0.375
5	0.625
10	1.25
15	1.875
20	2.5
25	3.125
50	6.25
75	9.375
100	12.5
250	31.25
500	62.5
1,000	125

Popular fl oz to cups conversions

Frequently asked questions

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

1 US fluid ounce = 0.125 cups.

What is 10 fl oz in cups (us)?

10 fl oz = 1.25 cups.

What is 100 fl oz in cups (us)?

100 fl oz = 12.5 cups.

How do I convert fluid ounces (us) to cups (us)?

Use the formula cups = fl oz ÷ 8. Or type any value into the converter above — it works in both directions.