Electric Potential Converter — Volts, Millivolts & Kilovolts

Convert between volts, millivolts, microvolts, kilovolts, megavolts, and CGS potential units.

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How this conversion works. Every unit is converted through the volt using exact SI prefixes; CGS units use factors from NIST Special Publication 811.

How to use

  1. Choose the units to convert from and to.
  2. Enter a value — the converted result updates instantly.
  3. Click Copy to copy the result to your clipboard.

Frequently asked questions

How do I convert millivolt to volt?

1 millivolt = 0.001 volt. Choose "Millivolt (mV)" as From and "Volt (V)" as To, type a value, and the result updates instantly.

How many millivolts are in a volt?

1,000 mV. Sensor outputs and thermocouple signals sit in the mV range; a AA cell is 1,500 mV; distribution lines run at 11–33 kV.

Is this for travel voltage converters?

No — this converts units of electric potential (mV ↔ V ↔ kV). A 110/220 V travel adapter is a transformer device, not a unit conversion.

Is my data sent to a server?

No. Conversions run entirely in your browser using fixed factors — nothing is uploaded or logged.

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