Volume conversion
1 cubic inch (in³) equals 0.00360465015 imperial gallon (imp gal). Enter any value below to convert from in³ to imp gal.
Enter a value and choose units. Results update instantly.
1 in³ = 0.0036046501 imp gal
| Unit | Value |
|---|---|
| Cubic meter m³ | 0.0000163871 |
| Liter L | 0.016387064 |
| Milliliter mL | 16.387064 |
| Cubic centimeter cm³ | 16.387064 |
| Cubic inch in³ | 1 |
| Cubic foot ft³ | 0.0005787037 |
| US gallon US gal | 0.0043290043 |
| Imperial gallon imp gal | 0.0036046501 |
| US quart US qt | 0.0173160173 |
| US customary cup US cup | 0.0692640693 |
| US fluid ounce US fl oz | 0.5541125541 |
Formula
Use this relationship for a direct conversion:
2 in³ = 0.0072093003 imp gal.
US liquid and Imperial gallon definitions are treated separately and use their exact legal values.
Quick reference
| Cubic inch (in³) | Imperial gallon (imp gal) |
|---|---|
| 0.01 | 0.0000360465 |
| 0.1 | 0.000360465 |
| 1 | 0.0036046501 |
| 2 | 0.0072093003 |
| 5 | 0.0180232507 |
| 10 | 0.0360465015 |
| 25 | 0.0901162537 |
| 50 | 0.1802325075 |
| 100 | 0.360465015 |
| 1,000 | 3.6046501499 |
From unit
The volume of a one-inch cube.
Symbol: in³
To unit
Exactly 4.54609 liters.
Symbol: imp gal
Keep converting
Source
Definitions are checked against NIST Handbook 44, Appendix C. Calculations use full internal precision before display rounding.
View the complete volume converterQuestions
Use the formula imp gal = in³ x 0.00360465015. 1 cubic inch (in³) equals 0.00360465015 imperial gallon (imp gal).
Both unit definitions use exact factors. Only the displayed decimal may be rounded.
