Cups to Fluid Ounces
Convert cups to fluid ounces instantly. The relationship is fixed: 1 cup = 8 fl oz (and 1 fl oz = 0.125 cup). To go from cups to fluid ounces, multiply by 8.
For example, 10 cup is 80 fl oz. Volume conversions are the heart of cooking and baking, where US recipes use cups and spoons while the rest of the world measures in millilitres and litres.
Fluid Ounces (fl oz)
8
1 cup = 8 fl oz
ResultFull conversion table
| cup | fl oz |
|---|---|
| 0.25 | 2 |
| 0.5 | 4 |
| 1 | 8 |
| 2 | 16 |
| 3 | 24 |
| 4 | 32 |
| 6 | 48 |
| 8 | 64 |
| 12 | 96 |
| 16 | 128 |
How to convert cups to fluid ounces
The formula is: fl oz = cup × 8. Take your amount in cups, multiply by 8, and you have the result in fluid ounces. To reverse it, divide by 8 (or multiply by 0.125).
Use the table below for the most common values at a glance, or the calculator for any exact amount.
Frequently asked questions
How many fluid ounces are in 1 cup?
1 cup equals 8 fl oz.
How many fluid ounces is 10 cup?
10 cup is 80 fl oz.
What's the formula for cups to fluid ounces?
Multiply cups by 8: fl oz = cup × 8.
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