Formula to convert 6.8 liters to gallons is to multiply 6.8 by 0.264172 (this is the value for 1 liter to gallon).
Convert 6.8 Liters to Gallons results
6.8 x 0.264172052 = 1.79636995632
6.8 l = 1.8 gal
To conclude the answer for 6.8 liters is one point eight gallons