The UK switched from gallons to litres for petrol priciing to be in line with the rest of the EU. Although you may still remember the conversion between gallons and litres, it will do you no good when driving in the United States because their gallon is different to the British gallon. Petrol prices in the US are measured in US gallons. If you are driving in the USA you will need to refule at a "gas station" where the delivery and price is measured in gallons.

Divide the number of litres by 3.785411784 litres per U.S. gallon to convert to U.S. gallons. For example, if you had 11 litres, you would divide 11 litres by 3.785411784 litres per U.S. gallon to get 2.91 U.S. gallons.

Divide the number of litres by 4.404884 litres per British gallon to convert to British gallons. For example, if you had 11 litres, you would divide 11 litres by 4.404884 litres per British gallon to get 2.497228077 British gallons.

Check your maths using an online liquid volume converter (see Resources).

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