UK gallon to US gallon Converter
1 gal (UK) = 1.20095 gal — convert instantly with formula and table.
Type a value above and it converts instantly — no button to press, no page reload, and the math runs entirely in your browser.
Quick answer: one uk gallon equals 1.2009 US gallons. So to convert UK gallons to US gallons, multiply by 1.20094993.
How to convert UK gallons to US gallons
US gallons = UK gallons × 1.2009499255
The imperial (UK) gallon is 4.54609 liters — about 20% larger than the US gallon. Confusing the two is a classic source of fuel-economy errors.
The US gallon is exactly 3.785411784 liters. American fuel prices are quoted per gallon, making this one of the most practical conversions for travelers.
UK gallon to US gallon conversion table
| UK gallon (gal (UK)) | US gallon (gal) |
|---|---|
| 0.01 gal (UK) | 0.012009 gal |
| 0.1 gal (UK) | 0.120095 gal |
| 0.25 gal (UK) | 0.300237 gal |
| 0.4 gal (UK) | 0.48038 gal |
| 0.75 gal (UK) | 0.900712 gal |
| 1.25 gal (UK) | 1.5012 gal |
| 1.75 gal (UK) | 2.1017 gal |
| 2.5 gal (UK) | 3.0024 gal |
| 3.5 gal (UK) | 4.2033 gal |
| 4.5 gal (UK) | 5.4043 gal |
| 6 gal (UK) | 7.2057 gal |
| 8 gal (UK) | 9.6076 gal |
| 10 gal (UK) | 12.0095 gal |
| 12 gal (UK) | 14.4114 gal |
| 14 gal (UK) | 16.8133 gal |
| 16 gal (UK) | 19.2152 gal |
| 18 gal (UK) | 21.6171 gal |
| 20 gal (UK) | 24.019 gal |
| 24 gal (UK) | 28.8228 gal |
| 26 gal (UK) | 31.2247 gal |
| 30 gal (UK) | 36.0285 gal |
| 35 gal (UK) | 42.0332 gal |
| 45 gal (UK) | 54.0427 gal |
| 55 gal (UK) | 66.0522 gal |
| 65 gal (UK) | 78.0617 gal |
| 75 gal (UK) | 90.0712 gal |
| 85 gal (UK) | 102.0807 gal |
| 95 gal (UK) | 114.0902 gal |
| 110 gal (UK) | 132.1045 gal |
| 125 gal (UK) | 150.1187 gal |
| 175 gal (UK) | 210.1662 gal |
| 250 gal (UK) | 300.2375 gal |
| 350 gal (UK) | 420.3325 gal |
| 450 gal (UK) | 540.4275 gal |
| 600 gal (UK) | 720.57 gal |
| 750 gal (UK) | 900.7124 gal |
| 900 gal (UK) | 1,080.85 gal |
| 1,500 gal (UK) | 1,801.42 gal |
| 2,500 gal (UK) | 3,002.37 gal |
| 10,000 gal (UK) | 12,009.5 gal |
Need the opposite direction? Use the US gallon to UK gallon converter, or read our complete guide to volume conversions for every formula in one place.
Frequently asked questions
How many US gallons are in one uk gallon?
One uk gallon equals 1.2009 US gallons. Multiply any uk gallon value by 1.20094993 to get US gallons.
What is 10 UK gallons in US gallons?
10 UK gallons equal 12.0095 US gallons (10 × 1.20095).
Is the uk gallon to us gallon conversion exact?
The conversion factor used here (1.2009499255) is based on the internationally agreed definitions of both units, so results are exact up to rounding of the final decimal places.
Is my data stored when I use this converter?
No. The conversion runs entirely in your browser with JavaScript — nothing you type is sent to a server, logged or stored.