How to use the electric potential of a point charge calculator
Find the electric potential at a distance from a point charge. Enter charge, distance from charge in the fields above; the electric potential are computed instantly and plotted on the chart so you can see how the answer changes.
Common searches this calculator answers include “potential of a charge”, “V = kQ/r”, “electric potential near charge”, “calculate electric potential of a point charge”, “find electric potential”.
Formula
Variables
- Q — Charge (C)
- r — Distance from charge (m)
Worked example
With charge = 2e-9 C, distance from charge = 0.5 m, the calculator gives electric potential ≈ 35.95021 V; electric potential ≈ 0.03595021 kV.
Frequently asked questions
What is the electric potential of a point charge calculator used for?
Find the electric potential at a distance from a point charge. It helps with questions such as “potential of a charge”, “V = kQ/r”, “electric potential near charge”.
What is the formula for the electric potential of a point charge calculation?
Electric potential (V) = KE × Q / r. Electric potential (kV) = [Electric potential] / 1000. Here Q is charge (C), r is distance from charge (m).
What inputs do I need for the electric potential of a point charge calculator?
You need charge in C, distance from charge in m. Each field is pre-filled with a typical example so you can see how the result responds as you edit the numbers.
How do I use the electric potential of a point charge calculator?
Type values into the input fields. Results and the chart update instantly. Use Reset to restore the example values, Copy results to paste them elsewhere, or Share to copy a link that preserves your inputs.
Is the electric potential of a point charge result exact?
Calculations use standard formulas and double-precision arithmetic, then display about seven significant figures. Real-world measurements carry uncertainty, so treat results as estimates unless your inputs are exact.