Electric Field Strength Converter
Convert electric field strength between volts per metre and related units.
Written by Rahman · Last reviewed
Quick answer
Electric field strength is force per unit charge, in volts per metre, dimensionally identical to newtons per coulomb, which is why both units appear here. One volt per centimetre is 100 V/m and one volt per inch is 39.37 V/m. Exceeding a material's dielectric strength causes breakdown, which is what sets insulation limits.
| Volt per metre (V/m) | 1 |
| Volt per centimetre (V/cm) | 0.01 |
| Volt per inch (V/in) | 0.0254 |
| Kilovolt per metre (kV/m) | 0.001 |
| Newton per coulomb (N/C) | 1 |
About the Electric Field Strength Converter
Electric field strength measures the force a field exerts on a unit of charge. The SI unit is the volt per metre, equivalent to the newton per coulomb.
It is used in electrostatics and the design of electrical insulation.
Frequently Asked Questions
What is electric field strength?
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It is the force per unit charge experienced by a charge placed in an electric field.
What is the SI unit?
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The SI unit is the volt per metre (V/m), which is the same as the newton per coulomb.
Why does field strength matter?
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If the field becomes too strong, insulating materials break down, a key concern in high-voltage engineering.