Voltage Converter

Voltage Converter — Convert Volts, kV, mV, MV Online

The Voltage Converter is a free online tool that converts between every common voltage unit: volts (V), millivolts (mV), microvolts (μV), kilovolts (kV), and megavolts (MV). Voltage is the electrical potential difference that drives current through circuits, and converting between scales is essential whenever you work with data sheets from different industries — from sensor signals measured in microvolts to power transmission lines rated in hundreds of kilovolts.

The Voltage Scale Across Industries

Voltage spans an enormous range. Battery cells produce single-digit volts. USB powers 5 V, household outlets deliver 120-240 V, electric vehicle batteries reach 400-800 V, while power transmission lines carry 100-765 kV. Sensitive instrumentation reads microvolts from thermocouples and strain gauges. Mixing units — reading 5 mV as 5 V — can fry expensive amplifiers or miss critical signals. The Voltage Converter eliminates this error class by translating any voltage to any unit instantly.

How to Use the Converter

Enter your voltage value, select the source unit, and pick the target unit. The conversion appears instantly with full precision — perfect for both microvolt-scale measurements and megavolt-scale transmission calculations. The tool also handles scientific notation for extreme scales.

Common Use Cases

Electronics engineers verify signal levels match input ranges. Power engineers analyze transmission voltage profiles. Embedded developers debug sensor readings. Solar installers calculate string voltages. Students complete electrical engineering homework. The tool is free, instant, mobile-friendly, runs entirely in your browser, and requires no signup. Bookmark it for fast voltage conversion anytime.

Tamer Baghdadi

CEO / Co-Founder