1 US fluid ounce to cubic inches
1 fl oz = 1.804688 in³. Change the amount below, or read the formula and the reference table further down.
1 US fluid ounce equals
cubic inches
1 fl oz = 1.804688 in³
The formula
US fluid ounces and cubic inches both measure volume from the same zero, so a single multiplier does the job.
in³ = fl oz × 1.8046875
Going the other way? Convert cubic inches to US fluid ounces.
US fluid ounces to cubic inches table
Values either side of 1 fl oz.
| US fluid ounces (fl oz) | Cubic inches (in³) |
|---|---|
| -4 | -7.2188 |
| -3.5 | -6.3164 |
| -3 | -5.4141 |
| -2.5 | -4.5117 |
| -2 | -3.6094 |
| -1.5 | -2.707 |
| -1 | -1.8047 |
| -0.5 | -0.902344 |
| 0 | 0 |
| 0.5 | 0.902344 |
| 1 | 1.8047 |
| 1.5 | 2.707 |
| 2 | 3.6094 |
| 2.5 | 4.5117 |
| 3 | 5.4141 |
| 3.5 | 6.3164 |
| 4 | 7.2188 |
| 4.5 | 8.1211 |
| 5 | 9.0234 |
| 5.5 | 9.9258 |
| 6 | 10.8281 |
Questions people ask
- How many cubic inches are in a US fluid ounce?
- One US fluid ounce equals 1.8046875 cubic inches.
- How do I convert US fluid ounces to cubic inches by hand?
- Multiply the number of US fluid ounces by 1.8046875. For a rough check, 1.8 is close enough for most everyday use.
- What is 1 US fluid ounce in cubic inches?
- 1 US fluid ounce is 1.804688 cubic inches.
Calcuit generates this page from a unit table, so the factors here match every other page on the site.