Daily Unit Converter

Volume guide · 8 min read

Liters to Gallons: US vs Imperial Conversion Guide

Convert liters to US and Imperial gallons accurately and understand why the two gallon definitions differ.

Liters to US gallons

One US liquid gallon equals exactly 3.785411784 liters. To convert liters to US gallons, divide liters by 3.785411784.

Ten liters equals approximately 2.64172 US gallons. For the reverse direction, multiply US gallons by 3.785411784.

Liters to Imperial gallons

One Imperial gallon equals exactly 4.54609 liters. Divide liters by 4.54609 to calculate Imperial gallons.

Because the Imperial gallon is larger, the same volume produces fewer Imperial gallons. Ten liters is approximately 2.19969 Imperial gallons.

Where each gallon is used

The US liquid gallon is used in the United States for fuel and many liquid products. The Imperial gallon remains relevant in some UK and Commonwealth contexts.

Always label the gallon type. Writing only gal can make an otherwise correct calculation ambiguous.

Liquid gallons and dry gallons

The US dry gallon is a separate unit and is not equal to the US liquid gallon. Dry measures should not be substituted in fuel or beverage conversions.

Choose a unit explicitly labeled US liquid, US dry, or Imperial whenever the source does not make the standard obvious.

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