The calculator
Gallons → Liters, instantly.
Formula: 1 Gallons = 3.785410 Liters

What is this calculator?

Convert Gallon to Liter. 1 US gallon equals 3.78541 liters.

The conversion formula
1 Gallons = 3.785410 Liters

Quick reference

1 Gallons
3.79 Liters
2 Gallons
7.57 Liters
5 Gallons
18.93 Liters
10 Gallons
37.85 Liters
¼ Gallons
0.9464 Liters
½ Gallons
1.89 Liters
¾ Gallons
2.84 Liters
100 Gallons
378.54 Liters

1 US Gallon = 3.78541 Liters. Convert gallons to liters for water tank sizing, fuel calculations, or understanding volume on imported product labels.

Frequently asked questions

How many liters is 1 gallon?

1 US gallon = 3.78541 liters.

How many liters in a 1000 gallon water tank?

1000 gallons = 3,785.41 liters.

Is Indian petrol mileage in km/litre or miles/gallon?

Indian petrol mileage is measured in km/litre. To convert to miles/gallon, multiply km/litre by 2.352.