US cups to US fluid ounces

Convert US cups to US fluid ounces. Live result, plus a quick-reference table for common values.

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⇆ Convert US fluid ounces to US cups instead

Frequently asked questions

How do I convert US cups to US fluid ounces?

Multiply the US cup value by 8. So 1 US cup = 8 fl oz, and the calculator above does it instantly for any number.

How many US fluid ounces are in a US cup?

There are 8 US fluid ounces in one US cup. The reference table shows the conversion for common values.

Is this cup to fl oz converter free?

Yes, completely free, no sign-up, and it runs entirely in your browser, so nothing is uploaded.