Formula to convert 12.7 liters to gallons is to multiply 12.7 by 0.264172 (this is the value for 1 liter to gallon).
Convert 12.7 Liters to Gallons results
12.7 x 0.264172052 = 3.35498506548
12.7 l = 3.35 gal
To conclude the answer for 12.7 liters is three point thirty five gallons