Volume
gal (US)toin³
Convert US gallons (gal (US)) to cubic inches (in³).
Factor1 gal (US) = 231 in³
Converter
gal (US)
Accepts numbers or expressions, e.g. 150 + 14.7
Result
in³
Rendered to 6 significant figures.
Formula
Formula
in³ = gal (US) × 231
Multiply any value in US gallons by 231 to obtain the value in cubic inches.
Worked example
Convert 10 gal (US) to in³.
- 01Start with 10 gal (US).
- 02Multiply by the conversion factor: 10 × 231 = 2310 in³.
Result10 gal (US) = 2310 in³
Conversion table
| gal (US) | in³ |
|---|---|
| 1 | 231 |
| 2 | 462 |
| 5 | 1155 |
| 10 | 2310 |
| 20 | 4620 |
| 50 | 11550 |
| 100 | 23100 |
| 200 | 46200 |
| 500 | 1.1550e+5 |
| 1000 | 2.3100e+5 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from gal (US) to in³?
1 gal (US) equals 231 in³. To convert, multiply the value in US gallons by 231.
How do I convert 1 gal (US) to in³?
1 gal (US) = 231 in³. For any value, multiply by 231.
How do I convert in³ back to gal (US)?
Divide by the same factor — or equivalently, multiply by 0.004329004. So 1 in³ = 0.004329 gal (US).
When would I need to convert US gallon to cubic inch?
Volume conversions are used for tank sizing, batch calculations, and bridging between vendor specs (gallons, barrels, ft³) and process documentation (m³, litres).
Is the conversion exact?
The factor shown is precise to at least 7 significant figures. For most process-engineering work this is far better than instrument accuracy. For metrology or trade applications, refer to the relevant national standard (NIST, BIPM, ISO 80000).