How do you calculate the volume of a planet?

Answer 1

A planet is largely spherical if we ignore minor imperfections, so you use the same formula that you would use to calculate the volume of a sphere:

4/3 * pi * radius^3

Ex: Earth's mean radius is 6,371km.

If we put this in our formula, we get 4/3*pi*6371^3 = 1.08321 x 10 ^12, or 1,083,206,917,000 km3

Answer 2

The volume of any sphere is

( 4/3 ) x (pi) x (radius of the sphere)3 .