Formula to convert 13.4 liters to gallons is to multiply 13.4 by 0.264172 (this is the value for 1 liter to gallon).
Convert 13.4 Liters to Gallons results
13.4 x 0.264172052 = 3.53990550216
13.4 l = 3.54 gal
To conclude the answer for 13.4 liters is three point fifty four gallons