US gallons (gal) to Cubic inches (in³) Conversion
US gallons
The US liquid gallon is a unit of volume equal to exactly 3.785411784 litres, used primarily in the United States for fuel sales, beverage containers, and agricultural applications. It is divided into 4 quarts, 8 pints, or 128 fluid ounces. The US gallon is approximately 16.7% smaller than the imperial (UK) gallon — a difference with significant implications in fuel economy comparisons and recipe conversions.
Cubic inches
The cubic inch is a unit of volume in the US customary and imperial systems equal to exactly 16.387 mL (the cube of 2.54 cm). Engine displacement in the United States is traditionally expressed in cubic inches: a 350 cubic inch V8 engine. It is also used in packaging, woodworking, and small industrial parts specifications.
| US gallons (gal) | Cubic inches (in³) |
|---|---|
| 0.1 gal | 23.10 in³ |
| 1 gal | 231.00 in³ |
| 2 gal | 462.00 in³ |
| 3 gal | 693.00 in³ |
| 5 gal | 1,155.00 in³ |
| 10 gal | 2,310.00 in³ |
| 20 gal | 4,620.00 in³ |
| 30 gal | 6,930.00 in³ |
| 50 gal | 11,550.00 in³ |
| 100 gal | 23,100.00 in³ |
| 1000 gal | 231,000.00 in³ |
Frequently Asked Questions (FAQ)
How many cubic inches are in 1 US gallons?
1 US gallons (gal) is exactly 231.000 cubic inches (in³).
How do I convert US gallons to cubic inches?
Multiply the value in US gallons by 231.000 to get the result in cubic inches. Or use the converter above — type any number and see the result instantly.