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Electric Potential Converter

Science

Convert voltage (electric potential) between volts, millivolts, kilovolts, and microvolts instantly — used for electronics, power systems, and lab work.

Reviewed by the thecalcu.com team · Last updated July 30, 2026

From
To
All conversionsfor 1 Millivolts (mV)
Megavolts (MV)1.0000e-9
Kilovolts (kV)0.000001
Volts (V)0.001
Millivolts (mV)1
Microvolts (µV)1000
Abvolt (CGS)100000
Statvolt (CGS)0.000003335641

What is a Voltage?

The Electric Potential Converter converts voltage between volts and its common sub-units, millivolts, microvolts, kilovolts, and megavolts, plus the CGS units abvolt and statvolt. Voltage spans a huge practical range: sensor outputs are measured in millivolts or microvolts, household electricity in volts, and power transmission lines in kilovolts, so converting accurately between these scales matters across electronics, power systems, and lab work.

Enter a value in any supported unit and the converter calculates the equivalent instantly. For related electrical quantities, see the Electric Current Converter for amperage and the Electric Resistance Converter for resistance.

Why Use an Electric Potential Converter?

A sensor datasheet might specify an output range in millivolts, while your measurement equipment or calculation needs volts, or a high-voltage equipment spec sheet lists kilovolts that need converting to compare against a different system's rating. Manually shifting decimal places across these scales is easy to get wrong, especially when working through a multi-step circuit calculation.

This converter removes that risk, handling everything from microvolt sensor signals to kilovolt power equipment in one tool. Pair it with the Ohm's Law Calculator or Voltage Drop Calculator when you need to relate voltage to current and resistance in an actual circuit.

Who Should Use This Converter?

  • Electronics hobbyists and makers converting sensor or component voltage specifications into the units their measurement equipment displays.
  • Electrical engineering students working through circuit problems that mix voltage units across a calculation.
  • Electricians and technicians comparing equipment voltage ratings against power supply or transmission specifications.
  • Biomedical and instrumentation engineers working with millivolt and microvolt-scale signal measurements.

What Insights Does the Electric Potential Converter Give You?

The main output is the converted value in your chosen target unit, calculated precisely from the fixed multiplier relationship between units. Because voltage spans such a wide practical range, from microvolts to megavolts, the converter also implicitly shows you the relative scale between two units, useful for sanity-checking whether a value is realistic for the type of circuit or system involved.

How to use this Voltage calculator

  1. Choose your starting unit from the source dropdown, for example, "Millivolts (mV)".
  2. Enter the numeric value you want to convert in the input field.
  3. Choose your target unit from the destination dropdown, for example, "Volts (V)".
  4. Read the converted result, which updates instantly as you type or change units.
  5. Use the swap (⇅) button if you need to reverse the conversion direction.
  6. Use the copy button to grab the result for a datasheet comparison, lab report, or circuit calculation.
Show formula & methodology ↓Show less ↑

Formula & Methodology

The converter's base unit is the volt (V). Every supported unit has a fixed multiplier to volts:

- 1 megavolt (MV) = 1,000,000 V
- 1 kilovolt (kV) = 1,000 V
- 1 millivolt (mV) = 0.001 V
- 1 microvolt (µV) = 0.000001 V
- 1 abvolt (CGS) = 0.00000001 V
- 1 statvolt (CGS) ≈ 299.79 V

Any conversion follows:

Result = Input × (toBase of source unit ÷ toBase of target unit)

Worked example, converting 3.3 V (a common logic-level voltage) to millivolts:

Result = 3.3 × (1 ÷ 0.001) = 3,300 mV

This confirms a common reference point in digital electronics, where 3.3V logic levels are frequently compared against sensor outputs specified in millivolts.

Frequently Asked Questions

How do I convert millivolts to volts?
Divide the millivolt value by 1,000, since one volt equals 1,000 millivolts. Enter your value with 'Millivolts (mV)' as the source unit and 'Volts (V)' as the target and the converter applies this automatically.
What is the difference between volts and millivolts?
A volt (V) is the SI unit of electric potential, while a millivolt (mV) is one-thousandth of a volt, sensor outputs, thermocouples, and biological signals like ECG readings are often measured in millivolts because the actual voltages involved are very small.
Why does household electricity use volts while power transmission uses kilovolts?
Household outlets deliver voltage in the 110-240V range depending on the country, a scale that's practical to express in whole volts, while long-distance power transmission lines operate at tens or hundreds of thousands of volts to reduce transmission losses, kilovolts keep those larger numbers manageable.
What is a microvolt used for?
Microvolts (µV) measure extremely small voltage signals, certain biomedical signals like EEG readings, or noise floor specifications in sensitive audio and RF electronics, where even a millivolt would be too coarse a unit.
How do I convert kilovolts to volts?
Multiply the kilovolt value by 1,000, since one kilovolt equals 1,000 volts. This conversion comes up often when comparing power transmission or high-voltage equipment specifications against standard low-voltage electronics.
What is an abvolt or statvolt, and why are they included here?
Abvolt and statvolt are CGS (centimetre-gram-second) electromagnetic units of electric potential, included for physics and engineering contexts that still reference CGS units in older textbooks or specialised research. See the [CGS to SI Units Converter](/cgs-si-converter/) for more CGS-to-SI conversions.
How does voltage relate to current and resistance?
Voltage, current, and resistance are related by Ohm's Law (V = I × R), if you know two of the three values, you can calculate the third. Use the [Ohm's Law Calculator](/ohms-law-calculator/) alongside this converter for a complete circuit calculation.
Can I use this converter to check a voltage drop calculation?
Yes, if the [Voltage Drop Calculator](/voltage-drop-calculator/) gives you a result in volts and you need it in millivolts (or vice versa) for a spec comparison, this converter handles that unit conversion directly.
Is voltage the same as EMF (electromotive force)?
Voltage and EMF are both measured in volts and are closely related, but EMF specifically refers to the energy supplied per unit charge by a source (like a battery) before any internal resistance losses, while voltage more generally refers to the potential difference measured anywhere in a circuit.
What precision should I use when converting small sensor voltages?
For microvolt and millivolt-scale sensor signals, keep several significant figures in your conversion, since these small values are often compared against similarly small threshold or noise-floor specifications where rounding can matter.
Also known as
volts to millivolts convertermv to volts convertervoltage converterkilovolts to voltsmicrovolts to volts