Formula to convert 50.9 liters to gallons is to multiply 50.9 by 0.264172 (this is the value for 1 liter to gallon).
Convert 50.9 Liters to Gallons results
50.9 x 0.264172052 = 13.44635746716
50.9 l = 13.45 gal
To conclude the answer for 50.9 liters is thirteen point forty five gallons