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Volt [V] to Millivolt [mV] Converter

Quick Reference

1 Volt (V) = 1000 Millivolt (mV)

1 Millivolt (mV) = 0.001 Volt (V)

How to Convert Volt to Millivolt

1 V = 1000 mV
1 mV = 0.001 V

To convert Volt to Millivolt, multiply the value by 1000. To convert Millivolt back to Volt, divide by 1000.

Example: convert 10 V to mV:
10 V = 10 x 1000 = 10000 mV

↔ Convert Millivolt to Volt

Volt

Definition: The volt (V) is the derived unit of electric potential, electric potential difference (voltage), and electromotive force in the International System of Units (SI). It is defined as the potential difference across a conductor when a current of one ampere dissipates one watt of power.

History/origin: The volt is named in honor of Italian physicist Alessandro Volta, inventor of the voltaic pile, the first chemical battery. The unit was established by the International Electrical Congress in 1881.

Current use: Volts are used universally to measure electrical potential difference in circuits, power systems, and electronic devices. It is a fundamental unit for specifying the voltage of power supplies, batteries, and electrical components.

Millivolt

Definition: A millivolt (mV) is a unit of electric potential equal to one thousandth (10⁻³) of a volt. It is a subunit of the base unit, the volt, in the International System of Units (SI).

History/origin: The volt is named in honor of Italian physicist Alessandro Volta. The millivolt, as a decimal multiple of the volt, was naturally derived as a smaller, more convenient unit for measuring smaller voltages.

Current use: Millivolts are used to measure small voltages in applications such as sensors, biomedical devices, thermocouples, and precision electronic circuits. It's a practical unit for measuring tiny changes in potential.

Volt to Millivolt Conversion Table

Volt [V]Millivolt [mV]
1 V1000 mV
2 V2000 mV
5 V5000 mV
10 V10000 mV
20 V20000 mV
50 V50000 mV
100 V100000 mV
200 V200000 mV
500 V500000 mV
1000 V1000000 mV

Common pairs of Voltage

Volt

Volt to MillivoltVolt to Kilovolt

Millivolt

Millivolt to VoltMillivolt to Kilovolt

Kilovolt

Kilovolt to VoltKilovolt to Millivolt

Volt [V] to Millivolt [mV] Converter

To convert Volt to Millivolt, enter your value in the V field above and the result in mV will appear instantly. You can also use the conversion factor shown in the table on this page to calculate manually. The formula is always the same: multiply your V value by the fixed conversion ratio to get the equivalent in mV.
Our Volt to Millivolt converter uses standardized conversion factors defined by international scientific and metrological organizations. All calculations are performed with full floating-point precision. You can also choose how many decimal places to display in the result, so you get exactly the level of detail you need.
Yes, absolutely. Simply swap the source and destination units in the converter β€” select mV as your input unit and V as your output unit. The same precision and standardized conversion factor applies in both directions.
Converting between Volt and Millivolt comes up regularly in engineering, scientific research, construction, and everyday tasks that involve measurements from different unit systems. Our converter eliminates the risk of manual calculation errors and saves time whenever you need to switch between these two units.
Yes, the Volt to Millivolt converter is completely free. No account or registration is required, and there are no usage limits. It works on any device β€” smartphones, tablets, and desktop computers β€” directly in your browser.
Volt and Millivolt are both units used to measure the same physical quantity, but they belong to different measurement systems or represent different scales. The mathematical relationship between them is fixed and constant, which is what makes accurate conversion possible. Scroll up to see the exact conversion factor, formula, and a reference table for common values.