Gallon (US) (gal) to Litre (l) Converter
1 gal = 3.78541 l
To convert Gallon (US) (gal) to Litre (l), multiply the value by 3.78541 — one gal is exactly 3.78541 l. Both are units of Volume. The table below lists the most-searched conversions, and the converter handles any value.
Formula
l = gal × 3.78541gal to l conversion table
Frequently asked questions
How many l are in 1 gal?+
1 Gallon (US) equals 3.78541 Litre, so 1 gal = 3.78541 l.
What is the formula to convert gal to l?+
Multiply the number of Gallon (US) by 3.78541. In other words: l = gal × 3.78541.
How much is 1 gal in l?+
1 Gallon (US) = 3.78541 Litre (1 gal = 3.78541 l).
Is this conversion exact?+
Yes. The factor used is the unit’s official definition; results are rounded to 10 significant digits for readability.