Convert US fluid ounces to cubic inches
1 US fluid ounce = 1.8047 cubic inches · in³ = fl oz × 1.8046875
When you need this conversion
This conversion goes from US fluid ounces, used for drinks and recipe liquids, to cubic inches, used for engine displacement and small volumes. Both measure the same physical quantity, so the conversion is exact — the difference is which unit your source, tool, or region happens to use.
US fluid ounces to cubic inches conversion table
| US fluid ounces (fl oz) | Cubic inches (in³) |
|---|---|
| 1 fl oz | 1.8047 in³ |
| 2 fl oz | 3.6094 in³ |
| 3 fl oz | 5.4141 in³ |
| 5 fl oz | 9.0234 in³ |
| 10 fl oz | 18.0469 in³ |
| 15 fl oz | 27.0703 in³ |
| 20 fl oz | 36.0938 in³ |
| 25 fl oz | 45.1172 in³ |
| 50 fl oz | 90.2344 in³ |
| 75 fl oz | 135.35 in³ |
| 100 fl oz | 180.47 in³ |
| 250 fl oz | 451.17 in³ |
| 500 fl oz | 902.34 in³ |
| 1,000 fl oz | 1,804.69 in³ |
The formula
in³ = fl oz × 1.8046875Because both units measure volume, the conversion is a single multiplication by a fixed factor. That factor never changes, so the result is exact.
Convert the other way
Cubic inches to US fluid ounces →Related volume conversions
- US fluid ounces to milliliters
- Milliliters to US cups
- Milliliters to US fluid ounces
- Liters to cubic meters
- Liters to US gallons
- Cubic meters to liters
- Cubic meters to cubic feet
- Cubic feet to cubic meters
- US gallons to liters
- US cups to milliliters
- Milliliters to cubic inches
- Liters to cubic inches
Frequently asked questions
- How many cubic inches are in a US fluid ounce?
- There are 1.8047 cubic inches in 1 US fluid ounce. The formula is in³ = fl oz × 1.8046875.
- How do you convert US fluid ounces to cubic inches?
- Use the formula in³ = fl oz × 1.8046875. For example, 10 US fluid ounces equals 18.0469 cubic inches.
- Is the US fluid ounces to cubic inches conversion exact?
- Yes. US fluid ounces and cubic inches are both units of volume, related by an exact defined factor. Displayed results are rounded for readability.
- What is fl oz short for?
- fl oz is the standard symbol for US fluid ounce. in³ is the symbol for cubic inch.