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US fluid ounces to US customary cups converter

Convert US fluid ounces (fl oz (US)) to US customary cups (cup (US)).

Volume converter

Instant conversion

Edit either value. Decimals and scientific notation supported.

fl oz (US)

cup (US)

CONVERSION

1 fl oz (US) ≈ 0.125 cup (US)

Precision changes displayed rounding, not calculation accuracy.

FORMULAcup (US) = fl oz (US) ÷ 8

FORMULA & EXAMPLES

How to convert US fluid ounces to US customary cups

cup (US) = fl oz (US) ÷ 8

Divide the fl oz (US) reading by 8.

Worked examples

1 fl oz (US) ≈ 0.125 cup (US)

1 ÷ 8 ≈ 0.125

8 fl oz (US) ≈ 1 cup (US)

8 ÷ 8 ≈ 1

Frequently asked questions

Which recipe measure should I select?

A metric cup is 250 mL, while a US customary cup is 236.5882365 mL. Metric teaspoons and tablespoons here are 5 mL and 15 mL; US customary spoons differ. Match the named definition in the recipe.

US fluid ounces to US customary cups table

Fixed reference · US fluid ounce to US customary cup

Reference values use this page’s named pair and default context. Calculator precision and font settings do not change this table.

US fluid ounce (fl oz (US))US customary cup (cup (US))
00
0.10.0125
0.50.0625
10.125
20.25
50.625
101.25
253.125
506.25
10012.5
1000125
Table results use 10 significant figures; decimal formula coefficients use up to 15. Calculations use the unit definitions before rounding. Extra digits do not improve measurement accuracy.

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