# Tag Info

It is all just geometry and mathematics. The volume of a sphere is calculated according to this formula: Volume = $(4/3) \times \pi \times r^3$ where $\pi$ = ‎3.14159..., and $r$ is the radius of the sphere. The Earth radius is 6,371 km. The Moon radius is 1,737 km. We put the numbers into the formula and we get: • The volume of Earth is 1,083,206,916,845....