ExactConverter

US gallons to litres

1 gal is 3.785 L. Exact factor: L = gal × 3.785411784.

The US gallon is defined as exactly 231 cubic inches. The imperial gallon is 4.546 L, so UK fuel economy figures are not comparable.

Live converter

Edit either field — the other updates instantly. Type decimal values like 38.4.

Common values

Questions

How do you convert US gallons to litres?
Apply the formula L = gal × 3.785411784. The converter above does it as you type, and every value below has its own page with the worked answer.
What is 1 gal in L?
1 gal is 3.785 L.
Is this exact?
The US gallon is defined as exactly 231 cubic inches. The imperial gallon is 4.546 L, so UK fuel economy figures are not comparable.

Every gal to L page — 172 values