Coulomb Potential Energy Calculator
Compute electrostatic potential energy U = kq₁q₂/r.
Input Data
Charge1C
C
Charge2C
C
Distance M
m
Results
0.898755J
89,875,517.873682V/m
8,987,551,787.368176N·m²/C²
At a glance:U = k·q₁q₂/r (k = 1/(4πε₀)). Complements coulombs-law and electric-potential.
Formula
U = k·q₁q₂ / r.
$$U = \frac{k q_1 q_2}{r}, \quad k = \frac{1}{4\pi\varepsilon_0} \approx 8.988 \times 10^9 \, \text{N·m}^2/\text{C}^2$$How to Use
- Enter both charges and distance.
- The tool returns potential energy.
Case Studies
q₁=q₂=1e-6, r=0.1
U = 0.09 J.
FAQ
Sign of U?
Positive for like charges (repel), negative for opposite (attract).
Related Tools
References
Content review: Calculatorism Science Team. Results are for reference only; please refer to the relevant authorities for the official figures.