Electricity converters

Electric Potential Converter

Convert voltage units: volt, millivolt, kilovolt, abvolt and statvolt.

Result

0.5 V

500 mV = 0.5 V

All units for this value
UnitSymbolValue
VoltV0.5
KilovoltkV0.0005
MegavoltMV5.00000e-7
MillivoltmV500
MicrovoltµV500000
NanovoltnV500000000
Watt per ampereW/A0.5
AbvoltabV50000000
StatvoltstatV0.00166782

About this calculator

Electric potential, commonly called voltage, measures the electrical energy available to move charge between two points in a circuit. This converter switches between the SI unit volt and its metric multiples, along with the CGS units abvolt and statvolt found in older physics references.

How it works in plain English

The converter anchors every unit to the volt and rescales your entered value through that common base for any pair of units selected. Metric multiples such as kilovolt, megavolt, millivolt, microvolt, and nanovolt each follow the standard powers-of-ten pattern, moving the decimal point by three places per step up or down the scale.

Watt per ampere is included because it is dimensionally and numerically identical to the volt, since power divided by current equals voltage, so the converter treats it as the same unit without any extra scaling. The CGS abvolt is defined as exactly one hundred-millionth of a volt (1e-8 V), while the statvolt is defined as roughly 299.792458 volts, both legacy units from electromagnetic and electrostatic CGS systems respectively.

Enter a value with your chosen from and to units, and the result updates immediately, with a full table showing the same voltage across every supported unit at once. A precision control sets how many decimal places are displayed, and a swap button reverses the two selected units in a single click.

The formula

  • value_in_target = value_in_source × (source factor to V) ÷ (target factor to V)
  • 1 abvolt = 1e-8 V
  • 1 statvolt = 299.792458 V
  • 1 kV = 1000 V

Worked example

Suppose an older physics text reports a potential difference as 2 statvolts, and a student wants that figure in ordinary volts for a modern circuit calculation. Multiplying by the conversion factor: 2 × 299.792458 = 599.584916 V.

Entering 2 into the statvolt field with volt selected as the target returns about 599.58 V immediately. The full unit table also shows this same value as roughly 0.59958 kV and 599,584,916 abvolts, all computed from that single entry without further arithmetic. Dividing 599.584916 by 1,000,000 also gives about 0.0005996 megavolts, which lines up with the megavolt row in the table and confirms the scaling was carried through correctly.

Electric potential unit factors

UnitValue in volts
1 volt (V)1
1 kilovolt (kV)1,000
1 megavolt (MV)1,000,000
1 millivolt (mV)0.001
1 abvolt (abV)1e-8
1 statvolt (statV)299.792458

Standard unit definitions

Frequently asked questions

Why is watt per ampere treated the same as the volt?

Power equals voltage multiplied by current, so rearranging that relationship shows voltage equals power divided by current. Because watt per ampere works out to exactly the same physical quantity as the volt, this converter lists it as an equivalent unit rather than applying any separate scaling factor.

Where does the statvolt come from?

The statvolt is part of the older CGS-esu (electrostatic) system of units and is defined so that one statvolt corresponds to about 299.792458 volts, a figure tied to the speed of light constant used in relating electrostatic and SI units. It appears mainly in older physics and electromagnetism texts rather than modern engineering documents.

Is the abvolt used in any modern applications?

The abvolt belongs to the CGS-emu (electromagnetic) system and is rarely used today outside of historical scientific literature, since it is an extremely small unit at one hundred-millionth of a volt. This converter includes it mainly so archived or textbook values expressed in abvolts can be translated into modern volt-based figures.

Can I convert millivolt sensor readings into volts quickly?

Yes. Select millivolt as the from unit and volt as the target, then enter the reading from your sensor or meter. The result and full unit table update immediately, so there's no need to manually divide by 1000 or look up the conversion factor.

Why do the unit table figures for abvolt look so large?

Because the abvolt is such a tiny fraction of a volt, converting even an ordinary voltage like a few volts into abvolts produces a very large number, since dividing by 1e-8 multiplies the figure by 100 million. This is expected behavior rather than an error in the conversion.

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