Formula to convert 77.5 liters to gallons is to multiply 77.5 by 0.264172 (this is the value for 1 liter to gallon).
Convert 77.5 Liters to Gallons results
77.5 x 0.264172052 = 20.473334061
77.5 l = 20.47 gal
To conclude the answer for 77.5 liters is twenty point forty seven gallons