21 cup to fl oz
21 US cups in US fluid ounces
21 cup = 168 fl oz
fl oz = cup × 8
21 US cups is 168 US fluid ounces. To get there, multiply by 8.
Values either side
| US cups | US fluid ounces |
|---|---|
| 17 cup | 136 |
| 18 cup | 144 |
| 19 cup | 152 |
| 20 cup | 160 |
| 21 cup ← | 168 |
| 22 cup | 176 |
| 23 cup | 184 |
| 24 cup | 192 |
| 25 cup | 200 |
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 21 cup in US fluid ounces?
- 21 cup is 168 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
- 21 fl oz to cup The other direction
- 17 cup to fl oz 136 fl oz
- 18 cup to fl oz 144 fl oz
- 19 cup to fl oz 152 fl oz
- 20 cup to fl oz 160 fl oz
- 22 cup to fl oz 176 fl oz
- 23 cup to fl oz 184 fl oz
- 24 cup to fl oz 192 fl oz
- 25 cup to fl oz 200 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