wikiHow Calculating Force of Gravity Calculator The force of gravity is the force that attracts two objects with mass towards each other. The formula for calculating the force of gravity between two objects is: force of gravity = (gravitational constant x mass1 x mass2) / distance^2 where: force of gravity = the force of gravity between two objects (in Newtons) gravitational constant = a constant value, 6.674 x 10^-11 N m^2/kg^2 mass1 = the mass of the first object (in kilograms) mass2 = the mass of the second object (in kilograms) distance = the distance between the centers of the two objects (in meters) To calculate the force of gravity, you need to know the masses of the two objects and the distance between them. Here are the steps: 1. Determine the masses of the two objects in kilograms. 2. Determine the distance between the centers of the two objects in meters. 3. Multiply the masses of the two objects together. 4. Multiply the result by the gravitational constant. 5. Divide the result by the distance between the centers of the two objects squared. Example: Suppose you have two objects with masses of 10 kilograms and 20 kilograms, respectively, and the distance between their centers is 2 meters. What is the force of gravity between the two objects? 1. Determine the masses of the two objects: 10 kilograms and 20 kilograms. 2. Determine the distance between the centers of the two objects: 2 meters. 3. Multiply the masses of the two objects together: 10 kilograms x 20 kilograms = 200 kilograms. 4. Multiply the result by the gravitational constant: 6.674 x 10^-11 N m^2/kg^2 x 200 kilograms = 1.335 x 10^-8 N m^2/kg. 5. Divide the result by the distance between the centers of the two objects squared: 1.335 x 10^-8 N m^2/kg / 2 meters^2 = 3.34 x 10^-9 N. Therefore, the force of gravity between the two objects is 3.34 x 10^-9 N. Page