Convert cubic inches to Imperial gallons
1 in³ = 0.00360465 imp gal. Change the amount below, or read the formula and the reference table further down.
1 cubic inch equals
Imperial gallons
1 in³ = 0.00360465 imp gal
The formula
Cubic inches and Imperial gallons both measure volume from the same zero, so a single multiplier does the job.
imp gal = in³ × 0.0036046501
Going the other way? Convert Imperial gallons to cubic inches.
Cubic inches to Imperial gallons table
Common values, rounded for reading.
| Cubic inches (in³) | Imperial gallons (imp gal) |
|---|---|
| 1 | 0.003605 |
| 2 | 0.007209 |
| 3 | 0.010814 |
| 4 | 0.014419 |
| 5 | 0.018023 |
| 6 | 0.021628 |
| 7 | 0.025233 |
| 8 | 0.028837 |
| 9 | 0.032442 |
| 10 | 0.036047 |
| 15 | 0.05407 |
| 20 | 0.072093 |
| 25 | 0.090116 |
| 30 | 0.10814 |
| 40 | 0.144186 |
| 50 | 0.180233 |
| 75 | 0.270349 |
| 100 | 0.360465 |
| 250 | 0.901163 |
| 500 | 1.8023 |
| 1,000 | 3.6047 |
Questions people ask
- How many Imperial gallons are in a cubic inch?
- One cubic inch equals 0.0036046501 Imperial gallons.
- How do I convert cubic inches to Imperial gallons by hand?
- Multiply the number of cubic inches by 0.0036046501. For a rough check, 0.004 is close enough for most everyday use.
- What is 1 cubic inch in Imperial gallons?
- 1 cubic inch is 0.00360465 Imperial gallons.
Calcuit generates this page from a unit table, so the factors here match every other page on the site.