Cubic Inches to Gallons (US)
Convert Cubic Inches (in³) to Gallons (US) (gal) instantly, with a formula, reference table, and FAQ.
Formula
Cubic Inches × 0.004329 = Gallons (US)
Cubic Inches (in³) and Gallons (US) (gal) are both units of volume. Use the converter above for any value, or check the quick-reference table below for common amounts.
Quick reference
| in³ | gal |
|---|---|
| 1 in³ | 0.004329 gal |
| 5 in³ | 0.021645 gal |
| 10 in³ | 0.04329 gal |
| 25 in³ | 0.108225 gal |
| 50 in³ | 0.21645 gal |
| 100 in³ | 0.4329 gal |
| 500 in³ | 2.1645 gal |
| 1000 in³ | 4.329 gal |
Frequently asked questions
How many Gallons (US) is one Cubic Inches?
One Cubic Inches (in³) equals 0.004329 Gallons (US) (gal).
How do I convert Cubic Inches to Gallons (US)?
Multiply the value in Cubic Inches by 0.004329 to get Gallons (US).
Is the Cubic Inches to Gallons (US) conversion exact?
Yes — this converter uses the internationally defined conversion factor between cubic inches and gallons (us), accurate to several decimal places.