Voltage Converter

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

From To 0.001

1 volt = 0.001 kilovolts

Most used voltage units

Popular voltage conversions

Volts to millivolts 1 V = 1,000 mV
Millivolts to volts 1 mV = 0.001 V
Kilovolts to volts 1 kV = 1,000 V
Volts to kilovolts 1 V = 0.001 kV
Microvolts to millivolts 1 µV = 0.001 mV

What is voltage?

Voltage, or electric potential difference, is the "push" that drives electric current through a circuit: the energy per unit of charge. The SI unit is the volt (V), one joule per coulomb, named after Alessandro Volta, who built the first battery in 1800.

Ohm's law ties voltage to current and resistance: voltage = current × resistance. Power is voltage times current, so a 230 V kettle drawing 10 A uses 2,300 W.

Voltage units from smallest to largest

Every proportional voltage unit on the site, ordered by size and expressed in volts.

Nanovolt 1 × 10^-9 V
Abvolt 1 × 10^-8 V
Microvolt 0.000001 V
Millivolt 0.001 V
Volt 1 V
Statvolt 299.792 V
Kilovolt 1,000 V
Megavolt 1,000,000 V

All 8 voltage units

SI

CGS

Frequently asked questions

How many millivolts are in a volt?

1,000 mV = 1 V.

What voltage is household electricity?

About 230 V at 50 Hz in Europe, most of Asia and Africa, and 120 V at 60 Hz in North America (240 V for large appliances).