QConvert
Gallon (US) to Cubic Inch Converter
Convert Gallon (US) to Cubic Inch instantly — live results with exact conversion factors.
Answer
1 gallon (us) = 231 cubic inches. To convert gal to in³, multiply by 231.
Quick Reference Table
| Gallon (US) (gal) | Cubic Inch (in³) |
|---|---|
| 1 | 231 |
| 2 | 462 |
| 5 | 1155 |
| 10 | 2310 |
| 20 | 4620 |
| 50 | 11550 |
| 100 | 23100 |
| 250 | 57750 |
| 500 | 115500 |
| 1000 | 231000 |
Formula
Convert Gallon (US) (gal) to Cubic Inch (in³) using the relationship:
in³ = gal × 231
How to Convert
- Take the value in gallons (us) (gal).
- Multiply it by 231 (the conversion factor from gal to in³).
- The result is the equivalent value in cubic inches (in³).
- Example: 1 gal = 231 in³.
Reverse Conversion
Need it the other direction? Cubic Inch to Gallon (US) conversion.
All Volume Conversions
See the full list of Volume conversions.
Related Conversions
FAQ
▸ How many cubic inches are in 1 gallon (us)?
1 Gallon (US) equals 231 cubic inches. Multiply by 231 to convert gal to in³.
▸ What is the formula to convert gallon (us) to cubic inch?
Multiply the value in gallons (us) by 231 to get cubic inches. Formula: in³ = gal × 231.
▸ How do I convert gallons (us) to cubic inches easily?
Enter your value in the converter at the top of this page — the cubic inches result updates live as you type. You can also multiply by 231 directly.