Coulomb's Law Calculator

Calculate electric force between charges using Coulomb's Law. Find force, charge, or distance.

Solve For

Charge 1 (C)

Charge 2 (C)

Distance (m)

Force (N) (solving)

Visualization

Results

899.0 mN

Force

0.1 m

Distance

1.00 μC

Charge 1

-1.00 μC

Charge 2

Attractive Force

Electric Fields

E at q₂ due to q₁:

8.99e+5 N/C

E at q₁ due to q₂:

8.99e+5 N/C

F = k|q₁||q₂|/r²

k = 8.99e+9 N·m²/C²

Like charges repel, opposite charges attract.

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