Convert electric field strength between volts per metre, shorter-distance metric scales, and the CGS reference unit with grouped result sheets that keep the V/m baseline visible.
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An electric field strength converter expresses one field value across the metre-, centimetre-, millimetre-, and CGS-based scales that appear in electronics, insulation, and electrostatics references. It is useful when a result starts in volts per metre but a datasheet, calculation note, or older source uses V/cm, kV/cm, or statV/cm instead.
This page converts a non-negative electric field strength into volts per metre, kilovolts per metre, megavolts per metre, volts per centimetre, volts per millimetre, kilovolts per centimetre, and statvolts per centimetre.
That grouped layout keeps the SI baseline visible while still making short-gap and historical CGS expressions easy to compare side by side.
The converter first normalizes the entered unit into volts per metre. Every supporting result is then just the same field written against a different distance scale or notation.
Keeping the V/m baseline visible reduces mistakes when a field value moves between insulation references, short-gap bench work, and electrostatics material that does not use modern SI phrasing.
1 V/cm = 100 V/m; 1 V/mm = 1,000 V/m
Shorter distance units represent the same field value against smaller lengths.
1 kV/m = 1,000 V/m; 1 MV/m = 1,000,000 V/m
Larger SI prefixes keep higher field strengths readable.
1 statV/cm ≈ 29,979.2458 V/m
The statvolt-per-centimetre unit is included for historical CGS electrostatics references.
The SI section is usually the best reference for modern engineering work. The centimetre and millimetre section is practical when a value is written against a shorter gap, and the CGS section helps when older references use statV/cm.
The headline result picks a readable scale automatically, but the grouped sheet is the safer cross-check when you need to confirm exactly how one source's notation maps onto another.
This calculator does not estimate dielectric breakdown, charge distribution, fringe effects, or full electrostatic geometry. It converts one electric field strength quantity into equivalent unit expressions only.
Use it as an educational and planning reference. If the next step depends on insulation coordination, geometry, or material behaviour, switch to a calculator or model that includes those assumptions directly.
Frequently asked questions
Because different references prefer different length scales. V/m is the standard SI baseline, while V/cm or V/mm can be easier to read when the field is described across a short physical gap.
kV/cm is useful when the field is discussed across small insulation gaps, test fixtures, or dielectric clearances where centimetres are the more natural distance reference.
No. Breakdown depends on geometry, materials, contamination, temperature, pressure, and waveform details. This page only converts the field-strength quantity itself between units.
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