Convert US Gallons to Cubic Inches
1 US gallon = 231 cubic inches. Type any value below to convert in either direction — the calculation happens in your browser.
US Gallons to Cubic Inches formula
Multiply the number of US gallons by 231 to get cubic inches.
cubic inches = US gallons × 231To go the other way: divide the number of cubic inches by 231, or multiply by 0.004329004.
US gallons = cubic inches ÷ 231US Gallons to Cubic Inches conversion table
| US Gallons | Cubic Inches |
|---|---|
| 1 gal | 231 in³ |
| 2 gal | 462 in³ |
| 3 gal | 693 in³ |
| 4 gal | 924 in³ |
| 5 gal | 1,155 in³ |
| 6 gal | 1,386 in³ |
| 7 gal | 1,617 in³ |
| 8 gal | 1,848 in³ |
| 9 gal | 2,079 in³ |
| 10 gal | 2,310 in³ |
| 15 gal | 3,465 in³ |
| 20 gal | 4,620 in³ |
| 25 gal | 5,775 in³ |
| 30 gal | 6,930 in³ |
| 40 gal | 9,240 in³ |
| 50 gal | 11,550 in³ |
| 75 gal | 17,325 in³ |
| 100 gal | 23,100 in³ |
| 250 gal | 57,750 in³ |
| 500 gal | 115,500 in³ |
| 1,000 gal | 231,000 in³ |
Cubic Inches to US Gallons conversion table
| Cubic Inches | US Gallons |
|---|---|
| 1 in³ | 0.004329004 gal |
| 2 in³ | 0.008658009 gal |
| 3 in³ | 0.01298701 gal |
| 4 in³ | 0.01731602 gal |
| 5 in³ | 0.02164502 gal |
| 6 in³ | 0.02597403 gal |
| 7 in³ | 0.03030303 gal |
| 8 in³ | 0.03463203 gal |
| 9 in³ | 0.03896104 gal |
| 10 in³ | 0.04329004 gal |
About the US gallon
A US liquid gallon is exactly 3.785411784 litres, or 128 fluid ounces.
About the cubic inch
A cubic inch is about 16.39 millilitres, traditionally used for American engine displacement.
Frequently asked questions
How many cubic inches are in a US gallon?
There are 231 cubic inches in one US gallon.
How many US gallons are in a cubic inch?
There are 0.004329004 US gallons in one cubic inch.
Is this conversion exact?
The ratio between the US gallon and the cubic inch is fixed by definition, so the conversion is exact — the figures shown here are rounded for readability only.
What is 10 US gallons in cubic inches?
10 US gallons equals 2,310 cubic inches.
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