cubic inch to US liquid gallon
Convert cubic inch (in³) to US liquid gallon (US gal). Use an editable volume converter, conversion formula, and reference table.
1 in³ = 0.004329004329 US gal
Conversion formula
One cubic inch equals 0.004329004329 US liquid gallon. Multiply your value in cubic inch by this factor to get US liquid gallon. For the reverse conversion, divide by the same factor.
Worked example
To convert 5 cubic inch:5 × 0.004329004329 = 0.02164502165 US gal
Conversion table
| cubic inch (in³) | US liquid gallon (US gal) |
|---|---|
| 0.01 | 0.00004329004329 |
| 0.1 | 0.0004329004329 |
| 1 | 0.004329004329 |
| 2 | 0.008658008658 |
| 5 | 0.02164502165 |
| 10 | 0.04329004329 |
| 25 | 0.1082251082 |
| 50 | 0.2164502165 |
| 100 | 0.4329004329 |
| 1000 | 4.329004329 |
About these measurements
Volume describes three-dimensional space or liquid capacity.
The base reference used here is the liter. One cubic inch is 0.016387064 base units; one US liquid gallon is 3.785411784 base units.
Important distinctions
US liquid measures and Imperial measures are different. Dry gallons and recipe cups are excluded.
Precision
The converter uses stored conversion factors and floating-point arithmetic. Results display up to ten significant digits, switching to scientific notation for very small or large values. Keep the precision of your original measurement when reporting results.
Common questions
How do I convert in³ to US gal?
Multiply the quantity in in³ by 0.004329004329. You can also type the value into the converter above.
Can I reverse the conversion?
Yes. Use the swap button or open the US liquid gallon to cubic inch converter.
Reference
NIST Guide to the SI — conversion factors and prefix conventions. SI prefixes scale units by powers of ten; the dimension-specific notes above describe the assumptions used on this page.
