US fluid ounce to US cup Converter

Convert US fluid ounce to US cup on this exact page. The old redirect to the general imperial converter was broader than the slug intent.

Need help with the calculation?
1 cup
cup = fl oz x 0.125
US fluid ounce, a volume unit. It is not an ounce of weight. US legal/customary cup, equal to 8 US fluid ounces.
Ask AI about this article
The assistant can make mistakes. Check important calculations and decisions. By sending a message, you agree to the Terms of Use and acknowledge the Privacy Policy.

US fluid ounce to US cup Converter

Quick answer

1 fl oz = 0.125 cup. Reverse formula: 1 cup = 8 fl oz.

Conversion examples

US fluid ounce US cup
1 fl oz 0.125 cup
2 fl oz 0.25 cup
5 fl oz 0.625 cup
10 fl oz 1.25 cup
25 fl oz 3.125 cup
100 fl oz 12.5 cup

Unit standard used

US fluid ounce, a volume unit. It is not an ounce of weight. US legal/customary cup, equal to 8 US fluid ounces.

Common mistake

Use this page for volume conversions only. Do not mix fluid ounces with weight ounces, or US liquid units with Imperial liquid units, unless the page explicitly says so.

Related tools

imperial weight and volume converter, gal to L, lb to kg, cups to fl oz.