Coulomb's Law Calculator
Calculate electrostatic force and electric field.
- Free Online Tool
- Instant Results
- Mobile Friendly
- No Installation
- Secure & Private
Understanding This Calculator
Coulomb's Law
Calculates the electrostatic force between two point charges.
F = k × (|q₁ × q₂|) / r²
k ≈ 8.99 × 10⁹ N·m²/C²
Example 1
q₁ = 1C, q₂ = 1C, r = 1m
- F = (9×10⁹ × 1 × 1) / 1² = 9 × 10⁹ N
How to Use
- Enter two charges and distance for force.
Frequently Asked Questions
How do I use the Coulomb's Law & Electric Field Calculator?
Enter your values in the input fields, and the result will appear instantly.
Is this calculator free to use?
Yes, this calculator is 100% free and does not require any registration or subscription.
Is it mobile-friendly?
Absolutely! Our tool is optimized for all devices, including mobile phones, tablets, and desktop computers.