Formula to convert 40000 liters to gallons is to multiply 40000 by 0.264172 (this is the value for 1 liter to gallon).
Convert 40000 Liters to Gallons results
40000 x 0.264172052 = 10566.882096
40000 l = 10566.88 gal
To conclude the answer for 40000 liters is ten thousand five hundred sixty six point eighty eight gallons