Fluid ounces (us) to Cups (us) Converter
Convert fluid ounce (US) to cup (US) instantly. Type a value below — the result updates as you type.
When you need to convert fluid ounce (US) to cup (US)
Volume conversions show up most in the kitchen and at the pump — scaling a recipe written for another country, dosing a liquid, or comparing fuel and drink sizes between metric and US/UK measures.
Typical values: 0.5 fl oz is about 0.0625 cup, and 100 fl oz works out to roughly 12.5 cup. Because the ratio is fixed at 0.125, you can scale any amount linearly — doubling the fluid ounces (US) doubles the cups (US).
US and UK 'cups', 'pints' and 'gallons' differ, so always check which system a recipe or label uses before converting.
How to convert fluid ounce (US) to cup (US)
One fluid ounce (US) equals 0.125 cups (US). To convert, multiply the number of fluid ounces (US) by 0.125:
cups (US) = fluid ounces (US) × 0.125
For example, 10 fluid ounces (US) × 0.125 = 1.25 cups (US).
Fluid ounces (us) to cups (US) conversion table
| Volume (fl oz) | Cups (us) (cup) |
|---|---|
| 1 fl oz | 0.125 cup |
| 2 fl oz | 0.25 cup |
| 3 fl oz | 0.375 cup |
| 5 fl oz | 0.625 cup |
| 10 fl oz | 1.25 cup |
| 20 fl oz | 2.5 cup |
| 50 fl oz | 6.25 cup |
| 100 fl oz | 12.5 cup |
FAQ
How many cups (US) are in a fluid ounce (US)?
One fluid ounce (US) = 0.125 cups (US).
How do I convert cups (US) back to fluid ounces (US)?
Divide by 0.125, or use the cups (US) to fluid ounces (US) converter.