Formula to convert 5.4 gallons to liters is to multiply 5.4 by 3.75841178 (this is the value for 1 gallon to liter).
Convert 5.4 Gallons to Liters results
5.4 x 3.78541178 = 20.441223612
5.4 gal = 20.44 l
It’s simple, the answer for 5.4 gallons is twenty point four four liters