How does this relate to weight?

This calculated force is exactly what we experience as weight — dividing this force by the object's mass gives the local gravitational acceleration, approximately 9.8 m/s² at Earth's surface.

Gravitational Force Calculator

Calculate the gravitational attraction force between two masses separated by a given distance, using Newton's universal law of gravitation.

Inputs

Results

Gravitational Force: 9,819.97 N

Try an example

Formula

F = G × (m₁ × m₂) / r²

Learn How This Works

Astrophysics and Energy: Orbits, Gravity, and Photons

Orbital velocity, gravitational force, photon energy, and spring potential energy — four calculations spanning orbital mechanics and energy storage.

Frequently Asked Questions

Related Calculators

Escape Velocity Calculator

Calculate the escape velocity needed to leave a planet's gravitational field.

Orbital Velocity Calculator

Calculate the orbital velocity needed to maintain a circular orbit.

Force Calculator (F=ma)

Calculate force from mass and acceleration using Newton's second law.

Kinetic Energy Calculator

Calculate the kinetic energy of a moving object.

Gravitational Potential Energy Calculator

Calculate gravitational potential energy from mass and height.

Acceleration Calculator

Calculate acceleration from change in velocity over time.