Formula to convert 26.5 liters to gallons is to multiply 26.5 by 0.264172 (this is the value for 1 liter to gallon).
Convert 26.5 Liters to Gallons results
26.5 x 0.264172052 = 7.0005593886
26.5 l = 7 gal
To conclude the answer for 26.5 liters is seven gallons