Select a category
Conversion Formula:
Convert Liter to Gallon (L to gal) instantly with accurate, readable results.
Convert between liters, milliliters, gallons, cups, and more using our Volume Unit Converter. Whether you're working in a kitchen, laboratory, or shipping warehouse, this precise unit conversion tool helps you switch between metric and imperial volume units effortlessly.
Liter (L) — a metric unit of volume equal to one cubic decimeter
It is defined as exactly one cubic decimeter, the volume of a cube with edges 1 decimeter long. Used worldwide for measuring liquids and capacity in cooking, beverages, fuel, medicine, science, packaging, water use, and everyday volume measurements.
- Symbol: L, l
- System: Non-SI unit accepted for use with SI; equal to one cubic decimeter
- Exact relations: 1 L = 1 dm³ = 1000 mL = 1000 cm³ = 0.001 m³
- Imperial and US equivalents: 1 L ≈ 61.0237 in³ ≈ 0.0353147 ft³ ≈ 0.264172 US gal ≈ 0.219969 imperial gal
- Typical examples: a large water bottle ~1 L; a carton of milk ~1 L; a car fuel tank may hold 40–70 L.
Gallon (gal) — a unit of volume used in US and imperial systems
It is a unit of volume, with different exact sizes in the US customary and imperial systems. The US liquid gallon is exactly 231 cubic inches, while the imperial gallon is exactly 4.54609 liters. Used for measuring fuel, milk, water, beverages, paint, containers, and other larger liquid quantities.
- Symbol: gal
- System: US customary and imperial unit for volume
- Exact relations: 1 US gal = 4 US qt = 8 US pt = 128 US fl oz = 3.785411784 L; 1 imperial gal = 4 imperial qt = 8 UK pt = 160 imperial fl oz = 4.54609 L
- Metric equivalents: 1 US gal ≈ 3.78541 L; 1 imperial gal = 4.54609 L
- Typical examples: car fuel economy often uses miles per gallon; milk may be sold in 1 gal jugs; large paint cans are often 1 gal.