Convert Cubic Inches to US Gallons
1 cubic inch = 0.004329004 US gallons. Type any value below to convert in either direction — the calculation happens in your browser.
Cubic Inches to US Gallons formula
Multiply the number of cubic inches by 0.004329004 to get US gallons.
US gallons = cubic inches × 0.004329004To go the other way: divide the number of US gallons by 0.004329004, or multiply by 231.
cubic inches = US gallons ÷ 0.004329004Cubic 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 |
| 15 in³ | 0.06493506 gal |
| 20 in³ | 0.08658009 gal |
| 25 in³ | 0.1082251 gal |
| 30 in³ | 0.1298701 gal |
| 40 in³ | 0.1731602 gal |
| 50 in³ | 0.2164502 gal |
| 75 in³ | 0.3246753 gal |
| 100 in³ | 0.4329004 gal |
| 250 in³ | 1.082251 gal |
| 500 in³ | 2.164502 gal |
| 1,000 in³ | 4.329004 gal |
US 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 |
About the cubic inch
A cubic inch is about 16.39 millilitres, traditionally used for American engine displacement.
About the US gallon
A US liquid gallon is exactly 3.785411784 litres, or 128 fluid ounces.
Frequently asked questions
How many US gallons are in a cubic inch?
There are 0.004329004 US gallons in one cubic inch.
How many cubic inches are in a US gallon?
There are 231 cubic inches in one US gallon.
Is this conversion exact?
The ratio between the cubic inch and the US gallon is fixed by definition, so the conversion is exact — the figures shown here are rounded for readability only.
What is 10 cubic inches in US gallons?
10 cubic inches equals 0.04329004 US gallons.
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