Formula to convert 10.2 liters to gallons is to multiply 10.2 by 0.264172 (this is the value for 1 liter to gallon).
Convert 10.2 Liters to Gallons results
10.2 x 0.264172052 = 2.69455493448
10.2 l = 2.69 gal
To conclude the answer for 10.2 liters is two point sixty nine gallons