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Coulomb's Law Calculator

Formula

The formula to calculate the Electrostatic Force (F) is:

$F = K_e \cdot \frac{q₁ \cdot q₂}{r^2}$

Where:

$F$ is the electrostatic force between the two objects (N)
$q₁$ is the magnitude of the first charge (C)
$q₂$ is the magnitude of the second charge (C)
$r$ is the distance between the charges (m)
$K_e$ is Coulomb's constant, $8.98755 \times 10^9 \, \text{N} \, \text{m}^2 / \text{C}^2$

What is Coulomb's Law?

Coulomb's law, also known as the inverse-square law, describes the force between two stationary charged particles. This force, known as the electrostatic effect, is fundamental to the theory of electromagnetism.