Newton's Law of Gravitation Calculator

Calculate the gravitational force between two objects using Newton's Universal Law of Gravitation.

Enter values above and click Calculate.

Formula

F = G × m₁ × m₂ / r²

  • F — Gravitational force between the two objects (Newtons, N)
  • G — Universal gravitational constant = 6.67430 × 10⁻¹¹ N·m²/kg²
  • m₁ — Mass of the first object (kg)
  • m₂ — Mass of the second object (kg)
  • r — Distance between the centers of the two objects (m)

Assumptions & References

  • Reference: Newton, I. (1687). Philosophiæ Naturalis Principia Mathematica.
  • Reference: NIST CODATA 2018 — physics.nist.gov

References