Free Electric Potential Calculator
Calculate electric potential from a point charge using V = k * Q / r.
C
m
Electric Potential
89,875.00 V
Electric Potential vs Charge
Electric Potential
Electric potential (voltage) at a point is the work done per unit charge to bring a positive test charge from infinity to that point.
Formula
V = k * Q / r
Unlike electric field, potential is a scalar quantity. It can be positive or negative depending on the sign of the source charge.
Example Calculation
Potential 10 cm from a 1 microcoulomb charge.
- 01V = k * Q / r
- 02V = 8.9875e9 * 1e-6 / 0.1
- 03V = 8987.5 / 0.1
- 04V = 89,875 V
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