Physics

Gravitational Force (Newton's Law)

Compute gravitational attraction F = Gm₁m₂/r² between two masses. Defaults show Earth pulling a person at the surface.

Live Calculator · Step-by-Step · Physics

Inputs

m₁ — Mass 1 (kg, e.g. Earth = 5.97×10²⁴)

m₂ — Mass 2 (kg, e.g. person = 70)

r — Distance between centers (m, Earth radius = 6.37×10⁶)

Result

Enter values and calculate.

Step-by-Step Work

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Gravitational Force Diagram

Put It Into Practice

The calculator shows the steps — a quiz proves you can do them on your own.

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