Formula to convert 78.4 liters to gallons is to multiply 78.4 by 0.264172 (this is the value for 1 liter to gallon).
Convert 78.4 Liters to Gallons results
78.4 x 0.264172052 = 20.71108890816
78.4 l = 20.71 gal
To conclude the answer for 78.4 liters is twenty point seventy one gallons