US Cups to US Fluid Ounces
1 US Cup = 8 US Fluid Ounces
Common amounts:
About the us cup to us fluid ounce conversion
The us cup (cup (US)) and the us fluid ounce (fl oz (US)) are both units of volume. Convert between volume units — milliliters, liters, US and UK gallons, quarts, pints, cups and fluid ounces.
To convert us cups to us fluid ounces, multiply by 8. To go back, multiply us fluid ounces by 0.125.
Reference table
| US Cups | US Fluid Ounces |
|---|---|
| 1 cup (US) | 8 fl oz (US) |
| 5 cup (US) | 40 fl oz (US) |
| 10 cup (US) | 80 fl oz (US) |
| 25 cup (US) | 200 fl oz (US) |
| 50 cup (US) | 400 fl oz (US) |
| 100 cup (US) | 800 fl oz (US) |
Need the reverse conversion? Convert US Fluid Ounces to US Cups.
Convert US Cup to other volume units
Frequently asked questions
- How many us fluid ounces is 1 us cup?
- 1 US Cup equals 8 US Fluid Ounces. To go the other way, 1 US Fluid Ounce equals 0.125 US Cups.
- What's the formula to convert us cups to us fluid ounces?
- Multiply the number of us cups by 8 to get us fluid ounces. For example, 10 us cups × 8 = 80 us fluid ounces.
- Does this converter handle decimals and very large numbers?
- Yes. Type any real number, including decimals or values in the trillions. Math runs entirely in your browser — no server round-trip, no sign-up, and nothing to install.