1 cup to fl oz
1 US cup in US fluid ounces
1 cup = 8 fl oz
fl oz = cup × 8
1 US cup is 8 US fluid ounces. To get there, multiply by 8.
Values either side
| US cups | US fluid ounces |
|---|---|
| 0.5 cup | 4 |
| 1 cup ← | 8 |
| 1.5 cup | 12 |
| 2 cup | 16 |
| 2.5 cup | 20 |
| 3 cup | 24 |
How the conversion works
The relationship is fl oz = cup × 8. Both units measure volume, so the conversion is a fixed factor that never changes. The figure is exact rather than approximate: since the international yard and pound agreement of 1959, an inch is defined as exactly 25.4 millimetres and a pound as exactly 0.45359237 kilograms, and every other imperial and US customary unit here is derived from those two.
US cup: US legal cup is 240 mL; the customary cup used here is 236.588 mL.
Common questions
- What is 1 cup in US fluid ounces?
- 1 cup is 8 fl oz.
- How do you convert US cups to US fluid ounces?
- Multiply by 8.
Related pages
- US cups to US fluid ounces Full table and converter
- 1 fl oz to cup The other direction
- 0.5 cup to fl oz 4 fl oz
- 1.5 cup to fl oz 12 fl oz
- 2 cup to fl oz 16 fl oz
- 2.5 cup to fl oz 20 fl oz
- 3 cup to fl oz 24 fl oz
Sources
- Guide for the Use of the International System of Units (SP 811) — NIST (Public domain (US Government))
- The International System of Units (SI Brochure) — Bureau International des Poids et Mesures
- Calculated on this page — At One Place