Convert Liters to Gallons

The Conversion Formula

To convert liters to gallons, multiply the value by the conversion factor: 1 L = 0.264172 gal. For a worked example, suppose you need to convert 25 L to gallons: 25 × 0.264172 = 6.6043 gal. To convert in the opposite direction, divide by 0.264172, or equivalently multiply by 3.7854.

About liters

The liter (L) is the metric system's unit for volume, defined as one cubic decimeter (10 cm x 10 cm x 10 cm). It was introduced in France in 1795 to standardize liquid measurement. Although technically a 'non-SI unit accepted for use with the SI,' it is the most common volume unit worldwide for beverages, fuel, and trade. It bridges the gap between small mL quantities and large cubic meter volumes. liters are commonly used in Soda and water bottles, Fuel tanks (outside US), Engine displacement (e.g., 2.0L engine), and Milk cartons (outside US), Scientific experiments.

A large water bottle is typically 1 liter.

About gallons

The gallon is a unit with a split personality. The US Gallon (approx. 3.785 L) is based on the pre-1824 English wine gallon. The Imperial Gallon (approx. 4.546 L) used in the UK is about 20% larger. This divergence happened when Britain updated its standards in 1824, but the newly independent US stuck with the old wine gallon. Today, the US gallon is the standard for fuel and milk in the United States. gallons are commonly used in Gasoline sales (US), Milk jugs (US), Paint buckets, and Water consumption tracking, Aquarium sizes.

A large milk jug in the US is 1 gallon.

When Would You Convert liters to gallons?

Converting between liters and gallons is one of the most common volume conversions. You might need this conversion when working with international specifications, following instructions written for a different measurement system, or comparing values across different standards. Having the conversion factor (1 L = 0.264172 gal) memorized or bookmarked can save time in professional and everyday contexts alike.