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Electric Potential Converter

Convert electric potential: volt, millivolt, kilovolt.

6 units
6 decimals

1 V = 1000 mV

About the electric potential converter

Electric potential, or voltage, measures the work needed to move a unit charge between two points and is expressed in volts (V) in SI — one volt is one joule per coulomb. Microelectronics work in millivolts and microvolts, mains electricity sits at 110–240 V, and high-voltage transmission runs into the hundreds of kilovolts. Use this converter to navigate between SI prefixes and CGS-era units like the abvolt and statvolt.

Frequently asked questions

  • What is the difference between voltage and current?

    Voltage is the potential difference — the “pressure” — driving charges. Current is the resulting flow of charge. Ohm’s law links them: V = I R.

  • How many volts are in a kilovolt?

    Exactly 1,000. A 230 kV transmission line is 230,000 V.

  • What is a statvolt?

    A CGS-esu unit equal to about 299.79 volts. It mostly appears in older theoretical-physics literature.

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Complete list of electric potential units