Coulomb's Law Calculator
Particles Electrostatic Force
0 ratings
Archived App (Last seen on 1 Jun 2026)
This is an archived listing of the app previously available on the App Store.Although the app is no longer distributed by Apple, you can still view its description, screenshots, version history, ratings, and metadata for reference.
About
Coulomb's Law Calculator is a physics/math calculator used to find particle charge 1, particle charge 2, distance between particles, or electrostatic force between two charged particles quickly and easily.
Features:
- Instant calculation.
- Results are copyable to other apps.
- Formulas are included as references.
- Supports up to 16 decimal places.
- Supports various units for each input.
- Works seamlessly on both iPhone and iPad.
- Lightweight, compact app optimized for everyday use.
- Ad-free and built with privacy in mind.
Coulomb's law, or Coulomb's inverse-square law, is a law of physics that quantifies the amount of force with which stationary electrically charged particles repel or attract each other.
Coulomb's law states that the magnitude of the electrostatic force of attraction or repulsion between two point charges is directly proportional to the product of the magnitudes of charges and inversely proportional to the square of the distance between them.
Coulomb's Law Formula:
F = Ke * q1 * q2 /r²
where:
F - electrostatic force between charges (in Newtons)
q1 - magnitude of the first charge (in Coulombs)
q2 - magnitude of the second charge (in Coulombs)
r - shortest distance between the charges (in m)
Ke - Coulomb's constant. 9.988 * 10^9 N * m² / C².
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What's New in Coulomb's Law Calculator
1.3
March 12, 2026
- Updated for the newest devices. - Minor bugs fixed.
