Quick answer: 1 US cup = 8 US fluid ounces (fl oz). For dry ingredients, use weight (grams) instead—volume-to-weight varies by ingredient.
This page covers
- US cups ↔ ounces conversion
- Tables for common kitchen amounts
- Formula and examples
- US vs metric cup notes
- FAQs
US Cups to Ounces (Fluid)
| Cups | Ounces |
|---|---|
| 1/4 cup | 2 fl oz |
| 1/3 cup | 2.67 fl oz |
| 1/2 cup | 4 fl oz |
| 1 cup | 8 fl oz |
| 2 cups | 16 fl oz |
Formula
ounces = cups × 8 (US fluid ounces)
Examples
- 2.5 cups × 8 = 20 fl oz
- 0.75 cup × 8 = 6 fl oz