Formula to convert 63.6 liters to gallons is to multiply 63.6 by 0.264172 (this is the value for 1 liter to gallon).
Convert 63.6 Liters to Gallons results
63.6 x 0.264172052 = 16.80134253264
63.6 l = 16.8 gal
To conclude the answer for 63.6 liters is sixteen point eight gallons