Formula to convert 50.4 liters to gallons is to multiply 50.4 by 0.264172 (this is the value for 1 liter to gallon).
Convert 50.4 Liters to Gallons results
50.4 x 0.264172052 = 13.31427144096
50.4 l = 13.31 gal
To conclude the answer for 50.4 liters is thirteen point thirty one gallons