Convert Volts per inch to Kilovolts per metre
Convert Volts per inch (V/in) to Kilovolts per metre (kV/m) instantly and accurately.
Conversion Formula
kV/m = V/in × 0.03937007874
About Volts per inch
The volt per inch (V/in) equals exactly 1 / 0.0254 V/m ≈ 39.370 V/m, used in North American high-voltage insulation specifications, PCB design rules, and cable withstand-voltage testing. ANSI/IEEE standards quote insulation withstand voltages per inch of creepage distance; PCB high-voltage layout rules specify minimum clearances rated in V/in; US power-supply withstand tests may state a 1 000 V/in dielectric rating. 1 V/in ≈ 39.370 V/m.
About Kilovolts per metre
The kilovolt per metre (kV/m) equals 10³ V/m, the standard unit for power-frequency electric field safety limits and environmental surveys near high-voltage infrastructure. ICNIRP occupational exposure limit for 50 Hz electric fields is 10 kV/m; directly under a 400 kV transmission line the surface field reaches 10-15 kV/m; the Earth's fair-weather atmospheric field averages 0.1-0.2 kV/m. 1 kV/m = 10³ V/m.
Quick Reference Table
| Volts per inch (V/in) | Kilovolts per metre (kV/m) |
|---|---|
| 1 V/in | 0.0393701 kV/m |
| 2 V/in | 0.0787402 kV/m |
| 5 V/in | 0.19685 kV/m |
| 10 V/in | 0.393701 kV/m |
| 25 V/in | 0.984252 kV/m |
| 50 V/in | 1.9685 kV/m |
| 100 V/in | 3.93701 kV/m |