Calculate the electric potential (voltage) at a distance from a point charge.
Charge & Distance
Potential Results
Enter charge and distance
About this calculator
Quick Reference
k8.99 × 10⁹ N·m²/C²
qPoint charge
rDistance
VPotential (Voltage)
Overview
Electric potential is the amount of work energy needed to move a unit of electric charge from a reference point to a specific point in an electric field.
💡
Pro Tips
Formula: V = k * q / r.
The value of k is approximately 8.99 × 10⁹ N·m²/C².
The SI unit for electric potential is the Volt (V), where 1 V = 1 Joule / Coulomb.
!
Fun Facts
"Unlike the electric field, electric potential is a scalar quantity (it only has magnitude, no direction)."
"Potentials from multiple charges can be simply added together ($V_{total} = V_1 + V_2 + ...$)."
"An 'Equipotential Surface' is a surface where every point has the same electric potential."
