An abvolt is the unit of electric potential in the electromagnetic (EMU/CGS) system. 1 abvolt equals exactly 10 to the power of negative 8 volts, or 0.00000001 volts. It shows up mainly in older laboratory instrumentation and legacy physics references.

Volts Converter — Online Voltage Unit Converter

Volts Converter

Convert a voltage value into all 10 supported voltage units at once — Nanovolts, Microvolts, Millivolts, Centivolts, Decivolts, Volts, Kilovolts, Megavolts, Statvolts, and Abvolts. Enter a value and unit to see every conversion instantly, along with the exact formula used. Worked examples, a quick reference table, and a full guide to voltage units are included below for students and job-site reference alike.

Enter a voltage value and select its unit. Formula: Volts = Value × Unit Factor, then each target unit = Volts ÷ Target Factor.

Voltage Value — select the unit it's currently in

Volts

—

Millivolts

—

Microvolts

—

µV

Nanovolts

—

Centivolts

—

Decivolts

—

Kilovolts

—

Megavolts

—

Statvolts

—

statV

Abvolts

—

abV

Formula: —

A voltage conversion is only as good as the unit you started from. Check the cards before the number is used in a design. The full disclaimer is below.

How to Use the Volts Converter

Enter Your Voltage Value

Type the voltage value from a meter reading, datasheet, or spec sheet into the input field.

Select the Source Unit

Choose the unit your value is currently in — Volts, Millivolts, Kilovolts, Microvolts, and 6 more units are supported, including the legacy Statvolt and Abvolt units.

Click Calculate

The converter instantly computes the equivalent value in all 10 supported voltage units at once — no need to convert one pair at a time.

Review Results and Print

Read the volt card first, then the prefixed cards, so a millivolt result is not mistaken for the volts you entered. The formula line shows the factor that was applied. Use Print if the conversion has to leave the screen.

Guide to Voltage Units Comprehensive Guide

A deeper look at where each voltage unit on this page comes from — the SI-prefixed units used in everyday electrical work, and the legacy CGS units still found in physics literature and older instrumentation.

SI-Prefixed Units (Nanovolts through Megavolts)

Volts, Millivolts, Microvolts, Nanovolts, Centivolts, Decivolts, Kilovolts, and Megavolts are all the same underlying unit — the volt — scaled by a power of ten. Voltage on a meter or a nameplate is almost always written in these SI prefixes. A millivolt is a thousandth of the volt you typed, and a kilovolt is a thousand of them. Moving between those prefixes does not round, because each step is an exact power of ten.

Statvolt (≈ 299.792458 V)

The statvolt is the unit of electric potential in the electrostatic (Gaussian/CGS) system, still used in some physics and electromagnetics literature. Its value in volts is tied to the exact value of the speed of light constant, which is why different sources may round the statvolt-to-volt conversion very slightly differently.

Abvolt (1 × 10⁻⁸ V)

The abvolt is the unit of electric potential in the electromagnetic (EMU/CGS) system. Unlike the statvolt, it is defined as an exact power of ten relative to the volt, so the abvolt-to-volt conversion is always precise. It appears mainly in older laboratory instrumentation and legacy physics references.

Unit	Symbol	Value in Volts	Common Use
Nanovolt	nV	1 × 10⁻⁹	Amplifier noise floor specs
Microvolt	µV	1 × 10⁻⁶	Biomedical sensors (EEG, ECG)
Millivolt	mV	1 × 10⁻³	Thermocouples, small-signal electronics
Centivolt	cV	1 × 10⁻²	Rarely used outside academic exercises
Decivolt	dV	1 × 10⁻¹	Rarely used outside academic exercises
Volt	V	1	SI base unit — meters, batteries, general use
Kilovolt	kV	1 × 10³	Distribution and transmission lines
Megavolt	MV	1 × 10⁶	Utility-scale engineering summaries
Statvolt	statV	≈ 299.792458	Physics / electrostatics (CGS-ESU)
Abvolt	abV	1 × 10⁻⁸	Legacy lab instrumentation (CGS-EMU)

This guide is provided for educational and reference purposes. Always confirm measured voltage values against a properly calibrated meter or instrument before relying on them for any electrical work.

Worked Examples

Three voltage conversions, worked from a value you might see on a meter or a nameplate. Load an example to run it in the calculator above.

1. USB Electronics — Volts to Millivolts

A USB power spec lists 5 V. A component datasheet lists its undervoltage lockout threshold in millivolts. Convert 5 V to mV.

5 V × 1,000 = 5,000 mV

2. Utility Report — Volts to Megavolts

A sub-transmission line reads 138,000 V. An engineering summary needs the value expressed in megavolts. Convert 138,000 V to MV.

138,000 V ÷ 1,000,000 = 0.138 MV

3. Biomedical Sensor — Microvolts to Nanovolts

An EEG sensor reads 250 µV. The amplifier's noise-floor spec is listed in nanovolts. Convert 250 µV to nV.

250 µV × 1,000 = 250,000 nV

Common Voltage Quick Reference Table

Common real-world voltages, mapped to millivolts and kilovolts, with a typical application for each. Use this to sanity-check a calculated result at a glance.

Volts	Millivolts	Kilovolts	Typical Application
1.5	1,500	0.0015	AA / AAA battery cell
3.3	3,300	0.0033	Microcontroller logic level
5	5,000	0.005	USB power
9	9,000	0.009	PP3 battery, guitar pedals, smoke detectors
12	12,000	0.012	Automotive / marine battery
24	24,000	0.024	Industrial control circuits, solar battery banks
48	48,000	0.048	Telecom systems, EV low-voltage packs
120	120,000	0.12	US / Canada household outlet
230	230,000	0.23	EU / UK household outlet
480	480,000	0.48	Three-phase industrial supply
4,160	4,160,000	4.16	Medium-voltage distribution feeder
138,000	138,000,000	138	Sub-transmission line

Frequently Asked Questions

How many millivolts are in 1 volt?

1 volt equals 1,000 millivolts. Multiply a volt value by 1,000 to get millivolts, or divide a millivolt value by 1,000 to get volts.

What is a statvolt and when is it used?

A statvolt is the unit of electric potential in the electrostatic (Gaussian/CGS) system. 1 statvolt equals approximately 299.792458 volts. It shows up in physics literature and older electrostatics texts, not on a multimeter or a supply nameplate. See the Guide to Voltage Units above for more detail.

What is an abvolt?

An abvolt is the unit of electric potential in the electromagnetic (EMU/CGS) system. 1 abvolt equals exactly 1 × 10⁻⁸ volts, or 0.00000001 volts. It shows up mainly in older laboratory instrumentation and legacy physics references.

Is voltage the same as electric potential difference?

Yes. Voltage is the common term for electric potential difference — the energy per unit charge available to move current between two points. Related terms like EMF (electromotive force) and voltage drop describe specific contexts of the same underlying quantity.

Why might two voltage converters show slightly different statvolt or abvolt results?

Statvolt conversions depend on the exact value used for the speed of light constant, and different tools round that constant differently. Abvolt conversions are an exact power of ten and will always match. Standard SI-prefix conversions — millivolts, kilovolts, and similar — are always exact as well, since they are simple powers of ten.