Formula
US fl oz to in³ conversion formula
Use this relationship for a direct conversion:
Worked example
2 US fl oz = 3.609375 in³.
US liquid and Imperial gallon definitions are treated separately and use their exact legal values.
Volume conversion
1 us fluid ounce (US fl oz) equals 1.8046875 cubic inch (in³). Enter any value below to convert from US fl oz to in³.
Enter a value and choose units. Results update instantly.
1 US fl oz = 1.8046875 in³
| 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 = 3.609375 in³.
US liquid and Imperial gallon definitions are treated separately and use their exact legal values.
Quick reference
| US fluid ounce (US fl oz) | Cubic inch (in³) |
|---|---|
| 0.01 | 0.018046875 |
| 0.1 | 0.18046875 |
| 1 | 1.8046875 |
| 2 | 3.609375 |
| 5 | 9.0234375 |
| 10 | 18.046875 |
| 25 | 45.1171875 |
| 50 | 90.234375 |
| 100 | 180.46875 |
| 1,000 | 1,804.6875 |
From unit
One 128th of a US liquid gallon.
Symbol: US fl oz
To unit
The volume of a one-inch cube.
Symbol: in³
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 in³ = US fl oz x 1.8046875. 1 us fluid ounce (US fl oz) equals 1.8046875 cubic inch (in³).
Both unit definitions use exact factors. Only the displayed decimal may be rounded.