Formula to convert 49.5 liters to gallons is to multiply 49.5 by 0.264172 (this is the value for 1 liter to gallon).
Convert 49.5 Liters to Gallons results
49.5 x 0.264172052 = 13.0765165938
49.5 l = 13.08 gal
To conclude the answer for 49.5 liters is thirteen point zero eight gallons