Cubic inches to US gallons
1 cubic inch in US gallons
1 in³ = 0.004329 gal
gal = in³ × 0.004329004329
To convert cubic inches to US gallons, multiply by 0.004329004329. The table below gives the values people look up most often, and the converter works for any number.
Cubic inches to US gallons table
| Cubic inches | US gallons |
|---|---|
| 1 in³ | 0.004329 |
| 2 in³ | 0.008658 |
| 3 in³ | 0.012987 |
| 4 in³ | 0.017316 |
| 5 in³ | 0.021645 |
| 10 in³ | 0.04329 |
| 15 in³ | 0.064935 |
| 20 in³ | 0.08658 |
| 25 in³ | 0.10823 |
| 30 in³ | 0.12987 |
| 40 in³ | 0.17316 |
| 50 in³ | 0.21645 |
| 75 in³ | 0.32468 |
| 100 in³ | 0.4329 |
| 250 in³ | 1.082251 |
| 500 in³ | 2.164502 |
| 1,000 in³ | 4.329004 |
How the conversion works
The relationship is gal = in³ × 0.004329004329. Both units measure volume, so the conversion is a fixed factor that never changes. The figure is exact rather than approximate: since the international yard and pound agreement of 1959, an inch is defined as exactly 25.4 millimetres and a pound as exactly 0.45359237 kilograms, and every other imperial and US customary unit here is derived from those two.
US gallon: US liquid gallon. The imperial gallon is about 20% larger.
Common questions
- How many US gallons are in one cubic inch?
- One cubic inch equals 0.004329 US gallons. gal = in³ × 0.004329004329.
- How do you convert cubic inches to US gallons?
- Use gal = in³ × 0.004329004329. So 10 in³ is 0.04329 gal.
- How many cubic inches are in one US gallon?
- One US gallon equals 231 cubic inches, which is the reverse of the conversion above.
- Is there more than one kind of US gallon?
- US liquid gallon. The imperial gallon is about 20% larger.
Related pages
Sources
- Guide for the Use of the International System of Units (SP 811) — NIST (Public domain (US Government))
- The International System of Units (SI Brochure) — Bureau International des Poids et Mesures
- Calculated on this page — At One Place