Convert US cups to US fluid ounces
1 US cup = 8 US fluid ounces · fl oz = cup × 8
When you need this conversion
This conversion goes from US cups, the volume-based measure central to American recipes, to US fluid ounces, used for drinks and recipe liquids. Both measure the same physical quantity, so the conversion is exact — the difference is which unit your source, tool, or region happens to use.
US cups to US fluid ounces conversion table
| US cups (cup) | US fluid ounces (fl oz) |
|---|---|
| 1 cup | 8 fl oz |
| 2 cup | 16 fl oz |
| 3 cup | 24 fl oz |
| 5 cup | 40 fl oz |
| 10 cup | 80 fl oz |
| 15 cup | 120 fl oz |
| 20 cup | 160 fl oz |
| 25 cup | 200 fl oz |
| 50 cup | 400 fl oz |
| 75 cup | 600 fl oz |
| 100 cup | 800 fl oz |
| 250 cup | 2,000 fl oz |
| 500 cup | 4,000 fl oz |
| 1,000 cup | 8,000 fl oz |
The formula
fl oz = cup × 8Because both units measure volume, the conversion is a single multiplication by a fixed factor. That factor never changes, so the result is exact.
Convert the other way
US fluid ounces to US cups →Related volume conversions
- Milliliters to US fluid ounces
- US cups to milliliters
- Milliliters to US cups
- Liters to cubic meters
- Liters to US gallons
- Cubic meters to liters
- Cubic meters to cubic feet
- Cubic feet to cubic meters
- US gallons to liters
- US fluid ounces to milliliters
- Liters to US fluid ounces
- Cubic meters to US fluid ounces
Frequently asked questions
- How many US fluid ounces are in a US cup?
- There are 8 US fluid ounces in 1 US cup. The formula is fl oz = cup × 8.
- How do you convert US cups to US fluid ounces?
- Use the formula fl oz = cup × 8. For example, 10 US cups equals 80 US fluid ounces.
- Is the US cups to US fluid ounces conversion exact?
- Yes. US cups and US fluid ounces are both units of volume, related by an exact defined factor. Displayed results are rounded for readability.
- What is cup short for?
- cup is the standard symbol for US cup. fl oz is the symbol for US fluid ounce.