Fluid Ounces to Cubic Inches
( fl oz → in³ )
Instantly convert US fluid ounces to cubic inches. Enter any value below and get an accurate result with the full formula and reference table.
How to Convert Fluid Ounces to Cubic Inches
To convert US fluid ounces to cubic inches, multiply the number of fluid ounces by 1.8046875. This exact factor comes from the relationship between gallons and cubic inches in US customary units.
Step-by-Step Example
Let’s convert 8 fluid ounces (a standard cup) to cubic inches:
1. Multiply by 1.8046875: 8 × 1.8046875 = 14.4375
2. So 8 fl oz equals 14.44 in³.
For a smaller amount, 0.5 fl oz × 1.8046875 = 0.90234375 in³ (about 1 tablespoon).
When You’d Use Each Unit
Fluid ounces are commonly used in the US for measuring liquids like milk, water, or juice. Cubic inches are used in engineering, automotive (engine displacement), and for measuring small container volumes. Converting between them helps when dealing with recipes and technical specifications.
Common fluid ounces values converted to cubic inches — typical values highlighted.
| Fluid Ounces (fl oz) | Cubic Inches (in³) | Approximate |
|---|