Formula to convert 1000000 liters to gallons is to multiply 1000000 by 0.264172 (this is the value for 1 liter to gallon).
Convert 1000000 Liters to Gallons results
1000000 x 0.264172052 = 264172.0524
1000000 l = 264172.05 gal
To conclude the answer for 1000000 liters is two hundred sixty four thousand one hundred seventy two point zero five gallons