Formula to convert 79.5 liters to gallons is to multiply 79.5 by 0.264172 (this is the value for 1 liter to gallon).
Convert 79.5 Liters to Gallons results
79.5 x 0.264172052 = 21.0016781658
79.5 l = 21 gal
To conclude the answer for 79.5 liters is twenty one gallons