Coulomb’s Law Calculator

Calculate the electrostatic force using: $$ F = k_e\, \frac{\left|q_1\, q_2\right|}{r^2} $$

* Ensure that the distance $r$ is greater than 0 and all values are in consistent SI units.

Step 1: Enter Parameters

Charge $q_1$ (C):

e.g., 1×10⁻⁶ C

Charge $q_2$ (C):

e.g., 2×10⁻⁶ C

Distance, $r$ (m):

e.g., 0.05 m

Calculated Electrostatic Force