Instant · Precise · Universal
47 units available
6 categories total
To liters: multiply by 4.54609. To US gallons: multiply by 1.20095. To cubic meters: multiply by 0.00454609.
1 UK gal = 4 UK qt = 8 UK pt = 160 UK fl oz = 4.54609 L ≈ 1.201 US gal.
For example, 1 Gallon (UK) (gal (UK)) = 4.546090e-15 Petaliter (PL).
| Gallon (UK) (gal (UK)) | Petaliter (PL) |
|---|---|
| 0.1 | 4.546090e-16 |
| 0.5 | 2.273045e-15 |
| 1 | 4.546090e-15 |
| 2 | 9.092180e-15 |
| 5 | 2.273045e-14 |
| 10 | 4.546090e-14 |
| 25 | 1.136523e-13 |
| 50 | 2.273045e-13 |
| 100 | 4.546090e-13 |
| 500 | 2.273045e-12 |
| 1000 | 4.546090e-12 |
The UK (imperial) gallon is a unit of volume equal to 160 UK fluid ounces, or exactly 4.54609 liters.
1 UK gal = 4 UK qt = 8 UK pt = 160 UK fl oz = 4.54609 L ≈ 1.201 US gal.
To liters: multiply by 4.54609. To US gallons: multiply by 1.20095. To cubic meters: multiply by 0.00454609.
UK road signs (mpg), older fuel consumption references, and some Caribbean and Middle Eastern markets that still use imperial units.
A UK gallon is about 20% larger than a US gallon. A car rated at 40 mpg (UK) gets only about 33 mpg (US).
Misinterpreting UK mpg as US mpg — UK figures look higher because the imperial gallon is larger.
UK gallon ≈ 4.55 L ≈ 1.2 US gallons. The UK gallon was defined so that 1 gallon of water = 10 pounds.



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