# How much does the Earths Atmosphere weigh?

#### pamichel

How much does the Earths Atmosphere weigh? Also let us know how to calculate that.

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#### dextercioby

Homework Helper
$\sim 5 \cdot 10^{18} \ Kg$.

What's the definition of atmospherical pressure ?

Daniel.

#### NateTG

Homework Helper
Isn't what you're listing the mass, rather than the weight of the atmosphere?

I would be inclined to multiply 19 PSI by the surface area of the earth.

#### krab

NateTG's right, except that atmospheric pressure is 14.7 PSI.

#### chroot

Staff Emeritus
Gold Member
You mean 14.7 psi, NateTG. I'd be inclined to do the same.

- Warren

atmospheric pressure is 101325 Pascal. i don't know the wieght.

if post #2 is right then it wieghs about 5x10^19Newtons

#### shyboy

atmospheric pressure is 101325 Pascal. i don't know the wieght.
to many numbers, i think $$10^5 Pa$$ will be good enough.

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