Convert Kilovolts per centimetre to Volts per inch

Convert Kilovolts per centimetre (kV/cm) to Volts per inch (V/in) instantly and accurately.

Kilovolts per centimetre (kV/cm)
Volts per inch (V/in)

Conversion Formula

V/in = kV/cm × 2540

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.

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.

Quick Reference Table

Kilovolts per centimetre (kV/cm)Volts per inch (V/in)
1 kV/cm2540 V/in
2 kV/cm5080 V/in
5 kV/cm12700 V/in
10 kV/cm25400 V/in
25 kV/cm63500 V/in
50 kV/cm127000 V/in
100 kV/cm254000 V/in

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