Volume conversion
1 us fluid ounce (US fl oz) equals 0.125 us customary cup (US cup). Enter any value below to convert from US fl oz to US cup.
Enter a value and choose units. Results update instantly.
1 US fl oz = 0.125 US cup
| Unit | Value |
|---|---|
| Cubic meter m³ | 0.0000295735 |
| Liter L | 0.0295735296 |
| Milliliter mL | 29.5735295625 |
| Cubic centimeter cm³ | 29.5735295625 |
| Cubic inch in³ | 1.8046875 |
| Cubic foot ft³ | 0.0010443793 |
| US gallon US gal | 0.0078125 |
| Imperial gallon imp gal | 0.0065052671 |
| US quart US qt | 0.03125 |
| US customary cup US cup | 0.125 |
| US fluid ounce US fl oz | 1 |
Formula
Use this relationship for a direct conversion:
2 US fl oz = 0.25 US cup.
US liquid and Imperial gallon definitions are treated separately and use their exact legal values.
Quick reference
| US fluid ounce (US fl oz) | US customary cup (US cup) |
|---|---|
| 0.01 | 0.00125 |
| 0.1 | 0.0125 |
| 1 | 0.125 |
| 2 | 0.25 |
| 5 | 0.625 |
| 10 | 1.25 |
| 25 | 3.125 |
| 50 | 6.25 |
| 100 | 12.5 |
| 1,000 | 125 |
From unit
One 128th of a US liquid gallon.
Symbol: US fl oz
To unit
Eight US fluid ounces, about 236.588 milliliters.
Symbol: US cup
Keep converting
Source
Definitions are checked against NIST Handbook 44, Appendix C. Calculations use full internal precision before display rounding.
View the complete volume converterQuestions
Use the formula US cup = US fl oz x 0.125. 1 us fluid ounce (US fl oz) equals 0.125 us customary cup (US cup).
Both unit definitions use exact factors. Only the displayed decimal may be rounded.
