How many cubic inches are in a US gallon?
There are 231 cubic inches in 1 US liquid gallon.
Detailed answer
The US liquid gallon is defined as exactly 231 cubic inches. This is a defining relationship, not an approximation.
Relationship context
Cubic inches appear in engine displacement; gallons in fuel tanks. Both are tied through the US gallon definition.
Quick conversion table
| Gallon (US) (gal) | Cubic Inches (in3) |
|---|---|
| 0.1 | 23.0999999756 |
| 1 | 230.999999756 |
| 2 | 461.999999512 |
| 3 | 692.999999268 |
| 4 | 923.999999024 |
| 5 | 1,154.99999878 |
| 6 | 1,385.99999854 |
| 7 | 1,616.99999829 |
| 8 | 1,847.99999805 |
| 9 | 2,078.9999978 |
| Gallon (US) (gal) | Cubic Inches (in3) |
|---|---|
| 10 | 2,309.99999756 |
| 20 | 4,619.99999512 |
| 30 | 6,929.99999268 |
| 40 | 9,239.99999024 |
| 50 | 11,549.9999878 |
| 60 | 13,859.9999854 |
| 70 | 16,169.9999829 |
| 80 | 18,479.9999805 |
| 90 | 20,789.999978 |
| 100 | 23,099.9999756 |
More Gallons (US) converters
Dedicated pages from Gallon (US) to every other hub volume unit (liter, cubic meter, US gallon, US fluid ounce, cubic foot, US tablespoon, US teaspoon, cubic inch).
- us-gallon to liter (Gallon (US) to Liter)
- us-gallon to cubic-meter (Gallon (US) to Cubic Meter)
- us-gallon to us-fluid-ounce (Gallon (US) to Fluid Ounce (US))
- us-gallon to cubic-ft (Gallon (US) to Cubic Feet)
- us-gallon to us-tablespoon (Gallon (US) to Tablespoon (US))
- us-gallon to us-teaspoon (Gallon (US) to Teaspoon (US))
- us-gallon to cubic-inch (Gallon (US) to Cubic Inches)