Formula to convert 3.5 liters to gallons is to multiply 3.5 by 0.264172 (this is the value for 1 liter to gallon).
Convert 3.5 Liters to Gallons results
3.5 x 0.264172052 = 0.9246021834
3.5 l = 0.92 gal
To conclude the answer for 3.5 liters is zero point ninety two gallons