How much is 1 gallons in liters?

1 gallons is 3.78541 liters (rounded).

Instant conversion · computed exactly

Unit conversion

1 gallons = 3.78541 liters

1 gallons is 3.78541 liters (rounded to 5 decimal places). 1 gallons = 3.78541 liters.

Computed exactly in the Seeked server — no estimation, always current. Search “1 gallons to liters” for sources.