- Enter Voltage — Type any numeric value.
- Select Units — Choose from 7 voltage units: V, mV, μV, kV, MV, statV, abV.
- See Results — Real-time conversion with common voltage reference chart.
- Copy — Click 'Copy' to copy result.
Voltage Converter — Convert Between Voltage Units
The Voltage Converter is a free tool for converting between 7 electric potential units with a built-in common voltage reference chart. Whether you're working in electrical engineering, electronics, physics, or need to understand power supply specifications, this tool provides instant conversions.
All calculations run entirely in your browser. No data is sent to any server.
Supported Units
- Volt (V) — The SI unit of electric potential. Named after Alessandro Volta. One volt drives one ampere through one ohm of resistance. The standard unit for all practical electrical work.
- Millivolt (mV) — One thousandth of a volt. Used for sensor outputs, thermocouple measurements, EEG/ECG signals, and low-level electronics.
- Microvolt (μV) — One millionth of a volt. Used for brain wave measurements (EEG), antenna signals, and precision instrumentation.
- Kilovolt (kV) — One thousand volts. Used for power distribution, high-voltage testing, X-ray tubes, and electric vehicle systems.
- Megavolt (MV) — One million volts. Used in particle accelerators, lightning research, and high-voltage power transmission.
- Statvolt (statV) — The CGS electrostatic unit. 1 statV ≈ 299.792 V. Used in theoretical physics.
- Abvolt (abV) — The CGS electromagnetic unit. 1 abV = 10⁻⁸ V. Used in some scientific contexts.
Common Voltage Reference
- USB: 5V (USB-A/B), 5-20V (USB-C PD)
- Car battery: 12V (nominal), 12.6V (full), 14.4V (charging)
- US mains: 120V AC, 60 Hz
- EU/UK/Asia mains: 220-240V AC, 50 Hz
- EV charging: 400V (standard), 800V (ultra-fast)
- Power lines: 110 kV to 765 kV
Features
- 7 Units — SI practical and CGS scientific units.
- Reference Chart — Common voltages for USB, mains, EV, power lines.
- Real-Time — Instant conversion as you type.
- All-Unit View — See all equivalents simultaneously.
Privacy
All conversions run in your browser. No data is transmitted. Works offline.