Electric Field Strength Converter
Convert between volts per meter, kilovolts per millimeter, volts per mil, kilovolts per centimeter and other electric field strength units.
Convert electric field strength
Result
Electric Field Strength units
Every unit below converts to every other one in the calculator. Values are relative to the base unit, the volt per meter (V/m).
| Unit | Symbol | System | Value |
|---|---|---|---|
| Volt per meter | V/m | SI | Base unit |
| Kilovolt per meter | kV/m | SI | = 1000 V/m |
| Volt per centimeter | V/cm | SI | = 100 V/m |
| Kilovolt per centimeter | kV/cm | SI | = 100000 V/m |
| Volt per millimeter | V/mm | SI | = 1000 V/m |
| Kilovolt per millimeter | kV/mm | SI | = 1000000 V/m |
| Volt per inch | V/in | US customary | ≈ 39.37007874 V/m |
| Volt per mil | V/mil | US customary | ≈ 39370.07874 V/m |
| Statvolt per centimeter | statV/cm | CGS | = 29979.2458 V/m |
Volt per meter quick reference
| Volt per meter | Volt per centimeter | Kilovolt per millimeter | Volt per mil |
|---|---|---|---|
| 1 V/m | = 0.01 V/cm | = 0.000001 kV/mm | = 0.0000254 V/mil |
| 10 V/m | = 0.1 V/cm | = 0.00001 kV/mm | = 0.000254 V/mil |
| 100 V/m | = 1 V/cm | = 0.0001 kV/mm | = 0.00254 V/mil |
| 1000 V/m | = 10 V/cm | = 0.001 kV/mm | = 0.0254 V/mil |
Among the 9 electric field strength units on this page, the smallest is the volt per meter (V/m) and the largest is the kilovolt per millimeter (kV/mm).
More electric field strength conversions
About electric field strength units
Electric field strength is the force per unit charge at a point, or the voltage change per distance. Its SI unit is the volt per meter (V/m), which equals one newton per coulomb.
Dielectric strength, the field at which an insulator breaks down, is usually given in kV/mm or, in the United States, in V/mil. One kV/mm is exactly 25.4 V/mil. Dry air at normal pressure breaks down at roughly 3 kV/mm (30 kV/cm).
Frequently asked questions
- How do I convert kV/mm to V/mil?
- Multiply by 25.4. A mil is 0.0254 mm, so 1 kV/mm is exactly 25.4 V/mil. For example, 20 kV/mm is 508 V/mil.
- Is V/m the same as N/C?
- Yes. One volt per meter is exactly one newton per coulomb. Both describe the same quantity.
- How many volts per centimeter are in one volt per meter?
- One volt per meter = 0.01 V/cm (volts per centimeter).
- How many kilovolts per millimeter are in one volt per meter?
- One volt per meter = 0.000001 kV/mm (kilovolts per millimeter).
- How many volts per mil are in one volt per meter?
- One volt per meter = 0.0000254 V/mil (volts per mil).