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Convert Fluid Ounces (US) to Cups (US)

Fluid Ounces (US) to Cups (US) conversion table

Fluid Ounces (US) (fl oz)Cups (US) (cup)
1 fl oz0.125 cup
2 fl oz0.25 cup
5 fl oz0.625 cup
10 fl oz1.25 cup
25 fl oz3.125 cup
50 fl oz6.25 cup
100 fl oz12.5 cup
200 fl oz25 cup
500 fl oz62.5 cup
1000 fl oz125 cup

How to convert fluid ounces (us) to cups (us)

Whether you need to express a value in cup instead of fl oz, this guide walks you through the exact steps. Volume conversions help when following recipes, measuring liquids, or comparing container sizes across US customary and metric units.

Formula: Multiply the fluid ounces (us) value by 0.125. In equation form: cup = fl oz × 0.125.

One fluid ounces (us) equals approximately 0.125 cup. This means you can multiply any fl oz value by 0.125 to get the equivalent in cup.

For instance, converting 100 fl oz gives 12.5 cup. Try different values using the quick-value chips or type directly into the input field.

Common mistake: US and UK gallons differ in size, so always check which gallon standard a recipe or specification uses before converting.

Bookmark this page for quick fl oz to cup conversions, or use the swap button to reverse the direction and convert cup back to fl oz.

Related conversions

Cups (US) to Fluid Ounces (US)

Frequently asked questions

1 fl oz equals 0.125 cup.

Multiply the fluid ounces (us) value by 0.125.

10 fl oz = 1.25 cup.