Formula to convert 20.8 liters to gallons is to multiply 20.8 by 0.264172 (this is the value for 1 liter to gallon).
Convert 20.8 Liters to Gallons results
20.8 x 0.264172052 = 5.49477868992
20.8 l = 5.49 gal
To conclude the answer for 20.8 liters is five point forty nine gallons