what is the mass of the earth in kg
Best Answer: Mass of earth = 5.9742 Ã 10^24 kilograms. To Calculate, Force of gravity F = G.m1.m2 / r^2. where m1 and m2 are two masses, and G is gravitational constant and r is distance. let m1 = M (mass of the Earth) So, F = G.M.m2 / rÂ². Now, assume m2 is a mass on the surface of the planet.