Formula to convert 11.7 liters to gallons is to multiply 11.7 by 0.264172 (this is the value for 1 liter to gallon).
Convert 11.7 Liters to Gallons results
11.7 x 0.264172052 = 3.09081301308
11.7 l = 3.09 gal
To conclude the answer for 11.7 liters is three point zero nine gallons