Formula to convert 1.6 liters to gallons is to multiply 1.6 by 0.264172 (this is the value for 1 liter to gallon).
Convert 1.6 Liters to Gallons results
1.6 x 0.264172052 = 0.42267528384
1.6 l = 0.42 gal
To conclude the answer for 1.6 liters is zero point forty two gallons