Formula to convert 28.4 liters to gallons is to multiply 28.4 by 0.264172 (this is the value for 1 liter to gallon).
Convert 28.4 Liters to Gallons results
28.4 x 0.264172052 = 7.50248628816
28.4 l = 7.5 gal
To conclude the answer for 28.4 liters is seven point five gallons