Formula to convert 99.1 liters to gallons is to multiply 99.1 by 0.264172 (this is the value for 1 liter to gallon).
Convert 99.1 Liters to Gallons results
99.1 x 0.264172052 = 26.17945039284
99.1 l = 26.18 gal
To conclude the answer for 99.1 liters is twenty six point eighteen gallons