Convert Volts per inch to Kilovolts per centimetre
Convert Volts per inch (V/in) to Kilovolts per centimetre (kV/cm) instantly and accurately.
Conversion Formula
kV/cm = V/in × 0.0003937007874
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 centimetre
The kilovolt per centimetre (kV/cm) equals exactly 10⁵ V/m = 100 kV/m, the practical unit for high-voltage insulation breakdown tests, gas discharge thresholds, and electrostatic process engineering. Air breakdown at standard conditions is about 30 kV/cm; transformer mineral oil withstands 10-20 kV/cm; XLPE power cable insulation is rated 20-40 kV/cm; electrostatic paint spraying operates at 5-15 kV/cm. 1 kV/cm = 10⁵ V/m.
Quick Reference Table
| Volts per inch (V/in) | Kilovolts per centimetre (kV/cm) |
|---|---|
| 1 V/in | 0.000393701 kV/cm |
| 2 V/in | 0.000787402 kV/cm |
| 5 V/in | 0.0019685 kV/cm |
| 10 V/in | 0.00393701 kV/cm |
| 25 V/in | 0.00984252 kV/cm |
| 50 V/in | 0.019685 kV/cm |
| 100 V/in | 0.0393701 kV/cm |