Formula to convert 17.4 liters to gallons is to multiply 17.4 by 0.264172 (this is the value for 1 liter to gallon).
Convert 17.4 Liters to Gallons results
17.4 x 0.264172052 = 4.59659371176
17.4 l = 4.6 gal
To conclude the answer for 17.4 liters is four point six gallons