Formula to convert 2.6 liters to gallons is to multiply 2.6 by 0.264172 (this is the value for 1 liter to gallon).
Convert 2.6 Liters to Gallons results
2.6 x 0.264172052 = 0.68684733624
2.6 l = 0.69 gal
To conclude the answer for 2.6 liters is zero point sixty nine gallons