Imperial Gallons to Cubic Meters Converter
1 imperial gallon = 0.00454609 cubic meters
1 imperial gallon equals 0.00454609 cubic meters
How to convert imperial gallons to cubic meters
Choose the named US, Imperial or metric unit before converting a recipe or container size. A US liquid gallon is 3.785411784 L; an Imperial gallon is 4.54609 L. Volume alone cannot give ingredient mass without density.
m³ = imp gal × 0.00454609One imperial gallon is 0.00454609 cubic meters, so a single multiplication converts any value.
0.0454609 m³ = 10 × 0.00454609Imperial gallons to cubic meters conversion table
Common values in imperial gallons, converted to cubic meters.
| Imperial gallons (imp gal) | Cubic meters (m³) |
|---|---|
| 1 | 0.00454609 |
| 2 | 0.00909218 |
| 3 | 0.01363827 |
| 4 | 0.01818436 |
| 5 | 0.02273045 |
| 10 | 0.0454609 |
| 20 | 0.0909218 |
| 25 | 0.11365225 |
| 50 | 0.2273045 |
| 100 | 0.454609 |
| 250 | 1.1365225 |
| 500 | 2.273045 |
| 1,000 | 4.54609 |
About these units
imperial gallonimp gal
The UK gallon: exactly 4.54609 litres.
Reference: UK Weights and Measures Act 1985.
cubic meterm³
The SI derived unit of volume: a cube one metre on each side, or 1,000 litres.
Sources and precision
Table results are rounded to 8 significant digits; formula constants may be rounded to 10. Worked example answers use 6 significant digits. The converter starts at 6 significant digits and lets you change display precision. Calculations use the stored factors without intermediate rounding. Exact unit definitions do not make an input measurement more precise; conventional and measured factors follow the assumptions stated here.