Gallons to Litres (Fuel) Converter Convert gallons (gal) to litres (L, l) instantly with our fast and accurate fuel conversion tool. What is a Gallon?A gallon is a fuel volume measurement used in the US.What is a Litre?A litre is the standard metric unit for fuel volume.How to Convert Gallons to LitresMultiply gallons by 3.78541.Example:10 × 3.78541 = 37.85 litres Gallon to LitreConversion Table Gallon [gal] 0.01 gal0.1 gal1 gal2 gal3 gal5 gal10 gal20 gal50 gal100 gal1000 gal Litre [L, l] 0.0378541178 L, l0.3785411784 L, l3.785411784 L, l7.570823568 L, l11.356235352 L, l18.92705892 L, l37.85411784 L, l75.70823568 L, l189.2705892 L, l378.5411784 L, l3785.411784 L, l FAQs Q: How many litres are in 1 gallon?A: 1 US gallon equals approximately 3.785 litres. Q: Why convert gallons to litres?A: Most countries use litres for fuel purchases. Q: Is a gallon larger than a litre?A: Yes, one gallon contains about 3.8 litres. Need more conversions? Explore all tools on Convertify Hub Browse All Converters