Formula to convert 16.4 liters to gallons is to multiply 16.4 by 0.264172 (this is the value for 1 liter to gallon).
Convert 16.4 Liters to Gallons results
16.4 x 0.264172052 = 4.33242165936
16.4 l = 4.33 gal
To conclude the answer for 16.4 liters is four point thirty three gallons