Liters to Gallons (L to gal)

How to convert liters to gallons

Divide the liters by 3.785411784:

U.S. gallons = liters ÷ 3.785411784

50 L ÷ 3.785 = 13.21 gal. The U.S. gallon is defined as exactly 231 cubic inches, which is 3.785411784 liters, so the factor is exact. The result also lists UK gallons, quarts and fluid ounces. To go the other way, multiply gallons by 3.785, or use the gallons to liters converter.

Liters to gallons chart (US and UK)

To convert a list — tank sizes, a delivery log — open Convert a list of values and paste the liters one per line.

Fuel: price per liter to price per gallon

Abroad, fuel is priced per liter. To compare with U.S. prices, multiply by 3.785:

• 1.80 per liter × 3.785 = 6.81 per gallon;
• 1.50 per liter × 3.785 = 5.68 per gallon.

Convert the currency separately. Fuel economy is often quoted in liters per 100 km, which runs the other way from miles per gallon: 7 L/100 km is 33.6 mpg, and a lower L/100 km figure means a more efficient car. A 50-liter tank holds 13.2 U.S. gallons.

How much a gallon of water weighs

A liter of water weighs about 1 kg, so volume gives weight directly: a U.S. gallon of water weighs about 3.785 kg, or 8.34 lb, and a 20-liter jug about 20 kg (44 lb). That is the number to check before lifting a full aquarium or loading a trailer — for other weights, use kilograms to pounds. Fuel is lighter than water: gasoline weighs roughly three-quarters as much per liter.

On a road trip abroad, distances are in kilometers as well as fuel in liters; km to miles converts the distance side.

US and UK gallons

The United States kept the old wine gallon of 231 cubic inches; the United Kingdom redefined its gallon in 1824 and now fixes it at 4.54609 liters. The UK gallon is about 20% larger, and its pints, quarts and fluid ounces differ too. U.S. recipes, fuel and product labels use U.S. gallons; older British sources and some Canadian fuel figures use imperial gallons. For fluid ounces, see liters to ounces.