Convert electric potential (voltage) between volts, millivolts, kilovolts, megavolts and CGS units.
Electricity • 7 units
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Voltage — electric potential difference — is the "pressure" that pushes current through a circuit. The unit, the volt (V), is named after Alessandro Volta, who built the first chemical battery (the voltaic pile) in 1800. One volt equals one joule of energy per coulomb of charge.
Everyday voltages span an enormous range: a sensor might output microvolts (µV), logic circuits use millivolts and volts, household mains is 120 V (US) or 230 V (EU), and power transmission lines run at hundreds of kilovolts (kV). Electronics hobbyists, technicians and engineers convert between mV, V and kV constantly when reading datasheets and meters.
Quick reference — 1 Volt (V) is equal to:
| Millivolt | mV | 1,000 |
| Microvolt | µV | 1,000,000 |
| Kilovolt | kV | 0.001 |
| Megavolt | MV | 0.000001 |
| Abvolt | abV | 100,000,000 |
| Statvolt | statV | 0.003335641 |