In this article, we will define a liter and a gallon and then discuss how to convert liters to gallons. Both a gallon(gal) and a liter(L) are units of capacity. The liter is not an SI unit but is accepted for use with the SI. The SI unit of volume is the cubic meter (m³).

A gallon is a unit in the US customary and the British imperial systems of measurement is used to measure very large volumes of liquids, while a liter is a metric unit of capacity, formerly defined as the volume of one kilogram of water under standard conditions.

### Formula to Convert Liters to Gallons.

To convert L to gal, divide the volume by the conversion ratio which is 3.785. This is due to the relationship that 1 gal is equivalent to 3.785 liters.

**Volume in gal = Volume in L ÷ 3.785**

**Example 1:**

Convert 50L to gallons.

**= 50** **÷ 3.785**

**= 13.2 gallons. **

**Example 2:**

Suppose a tank can hold 2000 gallons and 2.8 liters of water. Calculate the capacity of the tank in gallons.

**Convert L to gal.**

**= 2.8 ÷ 3.785**

**= 0.7398 gal**

**Put together**

**= 2000 + 0.7398**

**= 2000.7398 gallons.**

**Example 3.**

Suppose the volume of the water in an aquarium was 2500 liters. If 450 gallons of the water was used, calculate the amount of water left in gallons.

**Convert L to Gal**

**= 2500 ÷ 3.785**

**= 660.5 gallons**

**Find the Difference.**

**= 660.5 – 450**

**= 210.5 gallons remained.**