Formula to convert 4.9 liters to gallons is to multiply 4.9 by 0.264172 (this is the value for 1 liter to gallon).
Convert 4.9 Liters to Gallons results
4.9 x 0.264172052 = 1.29444305676
4.9 l = 1.29 gal
To conclude the answer for 4.9 liters is one point twenty nine gallons