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US Fluid Ounces to Cups Converter

Convert US fluid ounces to US cups. One US cup equals 8 US fluid ounces; Imperial measures are not used.

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Enter a finite non-negative value.

A QUICK WALKTHROUGH

How to use this tool

  1. Enter a finite non-negative value.
  2. Convert and review the result.
  3. Check the unit definition and source.

Definition and scope

NIST SP 811: 1 US cup = 8 US fl oz. This converter uses US customary liquid volume only, not Imperial fluid ounces or cups.

Formula and source

cups = US fluid ounces ÷ 8. Source: https://www.nist.gov/pml/special-publication-811/nist-guide-si-appendix-b-conversion-factors/nist-guide-si-appendix-b9. The calculation runs locally in your browser.

GOOD TO KNOW

Common questions

What factor is used?

NIST SP 811: 1 US cup = 8 US fl oz. This converter uses US customary liquid volume only, not Imperial fluid ounces or cups.

What is the formula?

cups = US fluid ounces ÷ 8.