Coulomb's Law
Calculate Coulomb's Law instantly with the exact formula and a worked example. Free online calculator — no signup, works on mobile.
Coulomb's Law
q1, C
q2, C
r, m
F
0.899N
More about: Coulomb's Law
What it calculates
The “Coulomb's Law” calculator computes F in N from 3 parameters: q1, c, q2, c, r, m.
A standard physics formula used in educational and engineering tasks.
Example calculation
With parameters q1, C = 0, q2, C = 0, r, m = 0.1 the result is 0.899 N.
How to use
- Enter the parameter values — every field above is adjustable with a slider.
- The result and related metrics are calculated automatically as you type.
- Use the additional metrics shown (if any) where needed.
- Copy the result or bookmark the page.