Calculate the electrostatic force between two point charges using Coulomb's law. Determines both magnitude and direction (attractive or repulsive) of the force.
Enter your values below
First charge in microcoulombs. Positive or negative.
Second charge in microcoulombs. Positive or negative.
Distance between the two charges in meters.
How this calculator works
Coulomb's law states that the electrostatic force F between two charges is proportional to the product of charges q1 and q2 and inversely proportional to the square of distance r. k = 8.988 x 10^9 N*m^2/C^2.
Common questions about this calculator
These calculators are for educational and informational purposes only. While we strive for accuracy, results should be verified for critical applications. Always consult authoritative sources for engineering or scientific work.
