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Kilovolt per centimeter (kV/cm)

Exactly 100,000 V/m. Dry air breaks down at roughly 30 kV/cm.

What is a kilovolt per centimeter?

Symbol
kV/cm
Quantity
Electric Field Strength
Unit system
SI
Definition
Exactly 100,000 V/m. Dry air breaks down at roughly 30 kV/cm.
Exact
Yes, the value is exact by definition
Source
SI Brochure, 9th edition (BIPM, 2019)

Common applications

Used for the breakdown strength of air and gases and in high-voltage engineering.

Kilovolt per centimeter in other electric field strength units

Kilovolt per centimeter quick reference

Kilovolt per centimeter in other units
Kilovolt per centimeterKilovolt per millimeterVolt per milVolt per meter
1 kV/cm= 0.1 kV/mm= 2.54 V/mil= 100000 V/m
10 kV/cm= 1 kV/mm= 25.4 V/mil= 1000000 V/m
100 kV/cm= 10 kV/mm= 254 V/mil= 10000000 V/m
1000 kV/cm= 100 kV/mm= 2540 V/mil= 100000000 V/m

Where the kilovolt per centimeter fits

The next smaller electric field strength unit is the volt per mil (V/mil). 1 kV/cm = 2.54 V/mil, and 1 V/mil ≈ 0.3937007874 kV/cm.

The next larger electric field strength unit is the kilovolt per millimeter (kV/mm). 1 kV/cm = 0.1 kV/mm, and 1 kV/mm = 10 kV/cm.

Frequently asked questions

How many kilovolts per millimeter are in one kilovolt per centimeter?
One kilovolt per centimeter = 0.1 kV/mm (kilovolts per millimeter).
How many volts per mil are in one kilovolt per centimeter?
One kilovolt per centimeter = 2.54 V/mil (volts per mil).
How many volts per meter are in one kilovolt per centimeter?
One kilovolt per centimeter = 100000 V/m (volts per meter).