Formula to convert 19.8 liters to gallons is to multiply 19.8 by 0.264172 (this is the value for 1 liter to gallon).
Convert 19.8 Liters to Gallons results
19.8 x 0.264172052 = 5.23060663752
19.8 l = 5.23 gal
To conclude the answer for 19.8 liters is five point twenty three gallons