How to convert us gallons to liters
To convert a measurement in us gallons to liters, multiply the value by 3.785412. The conversion factor comes from the relationship between both units and the liter.
For example, to convert 5 gal to liters: 5 × 3.785412 = 18.927059 L.
What is a us gallon?
A US gallon is a US customary unit of volume equal to 4 quarts, 128 fluid ounces, or exactly 3.785411784 liters. The US gallon is based on the old English wine gallon of 231 cubic inches. It is smaller than the imperial gallon used in the UK and Commonwealth, a frequent source of fuel-economy confusion.
Common uses of us gallons include: Fuel sold at the pump in the US; Milk, water, and beverage jug sizes; Paint and household liquid quantities; Vehicle fuel-economy figures (miles per gallon).
What is a liter?
A liter is a metric unit of volume equal to 1,000 cubic centimeters or one cubic decimeter, about 0.264 US gallons. Introduced in France in 1795, the liter was originally defined as the volume of one kilogram of water. It is accepted for use with the SI and is the everyday unit of volume for liquids across most of the world.
Common uses of liters include: Beverage and bottle sizes; Fuel sold at the pump in most countries; Engine displacement (e.g. a 2.0 L engine); Cooking and liquid recipe quantities.
When you need to convert us gallons to liters
People in the US often need gallons in liters when buying products abroad, filling metric-labeled tanks, or following international recipes and specifications. A one-gallon jug of milk is about 3.79 liters.
US Gallons to liters worked examples
Here are some common values converted:
1 gal = 3.785412 L 5 gal = 18.927059 L 10 gal = 37.854118 L 50 gal = 189.270589 L 100 gal = 378.541178 L
Frequently asked questions
How many liters are in one us gallon?
One us gallon (gal) equals 3.785412 liters (L). Multiply any value in us gallons by 3.785412 to convert to liters.
How do I convert us gallons to liters?
Multiply the value in us gallons by 3.785412. For example, 5 gal × 3.785412 = 18.927059 L.
How do I convert liters to us gallons?
Multiply the value in liters by 0.264172052358, or divide by 3.785412. Use the swap button on the converter above to reverse the direction.
Is the us gallon to liter conversion exact?
Conversions between metric volumes are exact by definition. US and imperial volumes are defined exactly relative to the liter, so these factors are exact.
What is the formula for us gallons to liters?
The formula is: L = gal × 3.785412. This comes from the definition of both units relative to the liter.