Converters
12
US cups to US fluid ounces Converter
Convert us cups to us fluid ounces instantly with the formula, worked examples, rounding guidance, and related volume conversions.
Units
85
Mode
Live
Pair-specific conversion guide
US cup to US fluid ounce formula
Converting US cups to US fluid ounces is straightforward with a fixed ratio of 1 cup to 8 fluid ounces. This conversion is essential in cooking and baking for accurately measuring liquid ingredients. Use the formula to quickly scale recipes or adjust portion sizes.
Formula model
1 cup = 8 fl oz
1 US cup equals
Quick factor: 1 cup = 8 fl oz.
Use a liquid measuring cup with ounce markings for direct measurement without calculation.
For partial cups, multiply the fraction by 8 to get fluid ounces, e.g., 1/4 cup equals 2 fl oz.
Check the measurement system for cooking units: US customary and imperial volumes are not always the same.
Precision and rounding
The calculation uses the catalog's fixed conversion factors between cup and fl oz. Full decimal precision is kept for the calculation; only the displayed value is rounded for readability.
Reference: NIST conversion factorsVolume
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US fluid ounces to US cups Converter
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Conversion table
1 US cup equals
| Unit | Value |
|---|---|
| Liter L | 0.2365882365 |
| Milliliter mL | 236.5882365 |
| Cubic meter m3 | 0.0002365882365 |
| US teaspoon tsp | 48 |
| US tablespoon tbsp | 16 |
| US fluid ounce fl oz | 8 |
| US pint pt | 0.5 |
| US quart qt | 0.25 |
| US gallon gal | 0.0625 |
FAQ
US cup to US fluid ounce questions
How many fluid ounces are in 5 US cups?
5 US cups equal 40 fluid ounces, based on the conversion of 1 cup = 8 fl oz.
Is the US cup the same as the imperial cup?
No, the US cup is 8 US fluid ounces, while the imperial cup is 10 imperial fluid ounces. This conversion applies only to US customary units.