Convert Volts per inch to Millivolts per metre
Convert Volts per inch (V/in) to Millivolts per metre (mV/m) instantly and accurately.
Conversion Formula
mV/m = V/in × 39370.07874
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 Millivolts per metre
The millivolt per metre (mV/m) equals 10⁻³ V/m, used for medium-wave broadcast field-strength measurements and near-field EMC compliance testing. An AM broadcast tower at 1 km produces a field of roughly 100 mV/m; international AM service-area limits specify minimum field strengths of 3-10 mV/m; power-frequency (50/60 Hz) fields near overhead HV lines are a few mV/m. 1 mV/m = 10⁻³ V/m.
Quick Reference Table
| Volts per inch (V/in) | Millivolts per metre (mV/m) |
|---|---|
| 1 V/in | 39370.1 mV/m |
| 2 V/in | 78740.2 mV/m |
| 5 V/in | 196850 mV/m |
| 10 V/in | 393701 mV/m |
| 25 V/in | 984252 mV/m |
| 50 V/in | 1968500 mV/m |
| 100 V/in | 3937010 mV/m |