What if every human died.

What if every human being on Earth died, thats 6+ billion people.

Now if you look at how much water a human is made of (55% ~ 78% depending on body size.) you can calculate how much water will return to the planet once every corpse decomposes.

The average weight per person is 60 ~ 70 kg if they are an adult.

So:
60kg * 0.55 = 33 kilograms / Litres of water minimum on average
70kg * 0.78 = 54.6 kilograms/ Litres of water minimum on average

Now multiply the average Litres of water by the ammount of people in the world: 6,697,254,041 (2008 estimate)

Min: 221009383353 Litres / 1000 = 22100938.333 Kilolitres
Max: 365670070638.6 Litres / 1000 = 36567007.063 Kilolitres

or in gallons: 264.172052 per 1 KL

Min: 58384502311616.65 Gallons
Max: 96599812915583.9 Gallons

So if everyone died, funny as it is. The world would be flooded with an estimated 36567007.063 Kilolitres of water once all the human bodies decompose.

Pretty interesting huh?