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Gallons to Liters Converter

Convert US gallons to liters instantly. Perfect for fuel efficiency calculations, cooking measurements, and liquid volume conversions.

Gallons to Liters Calculator
Result will appear here
Conversion Formula

Formula:

liters = gallons × 3.78541

Multiply the gallon value by 3.78541 to get liters. This conversion factor is based on the international definition where 1 US gallon equals exactly 3.78541 liters.

Common Gallons to Liters Conversions
Gallons (gal)Liters (L)Common Reference
1 gal3.79 LMilk jug
2 gal7.57 LLarge soda bottle
5 gal18.93 LWater cooler bottle
10 gal37.85 LSmall aquarium
20 gal75.71 LWater heater tank
50 gal189.27 LLarge drum
100 gal378.54 LIndustrial container
Real-World Example

Car Gas Tank Conversion

A car's gas tank holds 15 gallons. That's 56.78 liters.
Calculation: 15 × 3.78541 = 56.78 liters
Frequently Asked Questions
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Liters to Gallons Conversion Chart

Reference table comparing liters to US gallons and Imperial (UK) gallons.

Liters (L)US GallonsImperial Gallons
10.26420.2200
20.52830.4399
30.79250.6599
41.05670.8799
51.32091.0998
102.64172.1997
153.96263.2995
205.28344.3994
256.60435.4992
307.92526.5991
4010.56698.7988
5013.208610.9985
7519.812916.4978
10026.417221.9969
15039.625832.9954
20052.834443.9938

1 US gallon = 3.78541 L. 1 Imperial gallon = 4.54609 L. Imperial gallons are ~20% larger.

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