Cups to Fluid ounces Converter
Convert cups (cup) to fluid ounces (fl oz) instantly. 1 cup (US) = 8 fluid ounces.
How to convert cups to fluid ounces
fl oz = cup × 8
To convert cups to fluid ounces, multiply the volume value by 8. One cup (US) (cup) is equal to 8 fluid ounces (fl oz). For quick everyday conversions, the interactive converter above gives you the exact result as you type — no rounding surprises.
Cups to Fluid ounces conversion table
| Cups (cup) | Fluid ounces (fl oz) |
|---|---|
| 1 cup | 8 fl oz |
| 2 cup | 16 fl oz |
| 3 cup | 24 fl oz |
| 4 cup | 32 fl oz |
| 5 cup | 40 fl oz |
| 6 cup | 48 fl oz |
| 7 cup | 56 fl oz |
| 8 cup | 64 fl oz |
| 9 cup | 72 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 |
| 100 cup | 800 fl oz |
Frequently asked questions
How many fluid ounces are in 1 cup (US)?
1 cup (US) equals 8 fluid ounces.
How do I convert cups to fluid ounces?
Multiply the number of cups by 8. For example, 8 cup × 8 = 64 fl oz.
What is 8 cups in fluid ounces?
8 cups is equal to 64 fluid ounces.
Can I convert fluid ounces back to cups?
Yes — use our Fluid ounces to Cups converter, or divide by 8.