Formula to convert 15.3 liters to gallons is to multiply 15.3 by 0.264172 (this is the value for 1 liter to gallon).
Convert 15.3 Liters to Gallons results
15.3 x 0.264172052 = 4.04183240172
15.3 l = 4.04 gal
To conclude the answer for 15.3 liters is four point zero four gallons