Formula to convert 19.7 liters to gallons is to multiply 19.7 by 0.264172 (this is the value for 1 liter to gallon).
Convert 19.7 Liters to Gallons results
19.7 x 0.264172052 = 5.20418943228
19.7 l = 5.2 gal
To conclude the answer for 19.7 liters is five point two gallons