Formula to convert 5.5 liters to gallons is to multiply 5.5 by 0.264172 (this is the value for 1 liter to gallon).
Convert 5.5 Liters to Gallons results
5.5 x 0.264172052 = 1.4529462882
5.5 l = 1.45 gal
To conclude the answer for 5.5 liters is one point forty five gallons