Convert gallon (imperial) to liter

Enter the value to convert from gallon (imperial) to liter.

gal (Imp)
L
Result: 25 gallons (imperial) (gal (imp)) = 113.65225 liters (l)
OR
113 liters 652.3 milliliters

How to Convert Gallon (Imperial) to Liter

Converting gallon (imperial) to liter is straightforward using our conversion calculator.

Conversion Formula

L = gal (Imp) × 4.54609

Reverse conversion: Convert liter to gallon (imperial)

Comparison: Gallon-imperial vs Liter

When to Use Each Unit

Gallon-imperial: Used in the United Kingdom, Canada (for fuel), and some Commonwealth countries alongside metric measurements.

Liter: Standard volume unit worldwide for liquids, cooking, fuel, and most commercial applications. Used in all metric countries and scientific contexts.

Common Conversion Values

  • 1 Imperial gal = 4.546 L
  • 1 Imperial gal ≈ 1.201 US gal
  • 1 Imperial gal = 4 Imperial qt
  • 1 Imperial gal = 8 Imperial pt

About Imperial

Definition: The Imperial gallon is a unit of volume used in the UK and Commonwealth countries, equal to 4.546 liters.

History: Defined in 1824 in Britain as the volume of 10 pounds of water at 62°F. About 20% larger than the US gallon.

Current Use: Used in the United Kingdom, Canada (for fuel), and some Commonwealth countries alongside metric measurements.

Examples: UK fuel prices per Imperial gallon, Canadian fuel efficiency (mpg Imperial), brewing industry measurements

About Liter

Definition: The liter (symbol: L) is a metric unit of volume equal to one cubic decimeter. Defined as the volume of one kilogram of water at maximum density.

History: Introduced in 1795 during the French Revolution as part of the metric system. Originally defined as one cubic decimeter, redefined multiple times for precision.

Current Use: Standard volume unit worldwide for liquids, cooking, fuel, and most commercial applications. Used in all metric countries and scientific contexts.

Examples: Beverage bottles: 0.5-2L, car fuel tank: 40-80L, swimming pool: 20,000-100,000L, cooking recipes: 0.1-2L

Popular volume conversions