Cubic Inches to Imperial Gallons
Convert cubic inches (in³) to imperial gallons (imp gal). Type in either box; the other updates as you go.
How to convert cubic inches to imperial gallons
To convert cubic inches to imperial gallons, multiply the number of cubic inches by 0.00360465015.
Example
Convert 5 cubic inches to imperial gallons:
Cubic Inch to imperial gallon conversion chart
| Cubic Inches (in³) | Imperial Gallons (imp gal) |
|---|---|
| 1 in³ | 0.00360465 imp gal |
| 2 in³ | 0.0072093 imp gal |
| 3 in³ | 0.01081395 imp gal |
| 4 in³ | 0.0144186 imp gal |
| 5 in³ | 0.01802325 imp gal |
| 6 in³ | 0.0216279 imp gal |
| 7 in³ | 0.02523255 imp gal |
| 8 in³ | 0.0288372 imp gal |
| 9 in³ | 0.03244185 imp gal |
| 10 in³ | 0.0360465 imp gal |
| 12 in³ | 0.0432558 imp gal |
| 15 in³ | 0.05406975 imp gal |
| 20 in³ | 0.072093 imp gal |
| 25 in³ | 0.09011625 imp gal |
| 30 in³ | 0.1081395 imp gal |
| 40 in³ | 0.144186 imp gal |
| 50 in³ | 0.1802325 imp gal |
| 60 in³ | 0.216279 imp gal |
| 70 in³ | 0.2523255 imp gal |
| 75 in³ | 0.2703488 imp gal |
| 80 in³ | 0.288372 imp gal |
| 90 in³ | 0.3244185 imp gal |
| 100 in³ | 0.360465 imp gal |
| 150 in³ | 0.5406975 imp gal |
| 200 in³ | 0.72093 imp gal |
| 250 in³ | 0.9011625 imp gal |
| 500 in³ | 1.802325 imp gal |
| 1,000 in³ | 3.60465 imp gal |
Going the other way? See the imperial gallons to cubic inches chart.
About the units
Cubic Inch (in³)
A cubic inch is the volume of a cube one inch on each side, about 16.39 milliliters. US engine sizes were long given in cubic inches.
Imperial Gallon (imp gal)
The imperial gallon is exactly 4.54609 liters, used in the UK and some Commonwealth countries. It is about 1.2 US gallons.
Frequently asked questions
How many imperial gallons are in a cubic inch?
There are 0.00360465015 imperial gallons in a cubic inch.
How many cubic inches are in an imperial gallon?
There are 277.4194328 cubic inches in an imperial gallon.
How do you convert cubic inches to imperial gallons?
To convert cubic inches to imperial gallons, multiply the number of cubic inches by 0.00360465015.
What is 5 cubic inches in imperial gallons?
5 cubic inches equals 0.0180233 imperial gallons.
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