Voltage Converter
Free online Voltage Converter to convert between volts, millivolts, kilovolts, and microvolts instantly.
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The Voltage Converter instantly converts between microvolts, millivolts, volts, and kilovolts. From a tiny sensor signal in microvolts to a transmission line in kilovolts, it gives you the exact equivalent in one click — no manual decimal-shifting, no mistakes.
From Microvolts to Kilovolts
Voltage spans an enormous range. A biomedical sensor might output microvolts, a battery delivers volts, and a power line carries kilovolts. Each unit is a factor of 1,000 from the next, which makes manual conversion a string of error-prone decimal moves. This converter handles the scaling precisely so your numbers are always right.
How to Convert
- Enter the voltage value.
- Choose the from and to units.
- Read the converted result instantly.
The Voltage Unit Ladder
| Unit | Symbol | In volts |
|---|---|---|
| Microvolt | µV | 0.000001 V |
| Millivolt | mV | 0.001 V |
| Volt | V | 1 V |
| Kilovolt | kV | 1,000 V |
Voltage in Context
Voltage is the electrical "pressure" that drives current through a circuit. It pairs with two other quantities you'll often see alongside it: current (the flow of charge, in amps) and power (the rate of energy transfer, in watts), linked by Ohm's law and P = V × I. This tool focuses on converting voltage units; for power, use a dedicated power converter.
AC, DC, and the Units
A common question: does it matter whether the voltage is AC or DC? For unit conversion, no — a volt is a volt either way. The AC/DC distinction affects how voltage is measured (peak versus RMS, for instance), but converting between microvolt, millivolt, volt, and kilovolt is identical for both.
Who Uses It
- Electronics hobbyists reading sensor and circuit values.
- Electricians working across voltage scales.
- Engineers reconciling datasheet units.
- Students solving circuit problems.
Accurate and Free
Each unit differs by a clean factor of 1,000, applied at full precision in your browser. Convert as often as you need, free.
Frequently Asked Questions
What units does the voltage converter handle?
It converts between microvolts (µV), millivolts (mV), volts (V), and kilovolts (kV) — the full range from tiny sensor signals to high-voltage transmission. Each step is a factor of 1,000 apart.
How many millivolts are in a volt?
One volt equals 1,000 millivolts. So 5 V is 5,000 mV, and 250 mV is 0.25 V. Millivolts are common when measuring small signals from sensors and audio circuits.
What is the difference between voltage, current, and power?
Voltage is the electrical 'pressure' that pushes current through a circuit, current is the flow of charge, and power is the rate of energy transfer — related by Ohm's law and P = V × I. This tool converts voltage units only.
When would I use kilovolts?
Kilovolts appear in power transmission, X-ray equipment, and other high-voltage systems, where one kilovolt equals 1,000 volts. Converting to volts helps relate those large figures to everyday electronics.
Why convert to microvolts?
Microvolts measure very small signals, such as the output of certain sensors, thermocouples, and biomedical instruments. One microvolt is a millionth of a volt, so converting keeps tiny readings readable.
Is this for AC or DC voltage?
The unit conversion is the same for both — a volt is a volt. The distinction between AC and DC matters for how voltage is measured (peak, RMS) but not for converting between volt, millivolt, and kilovolt units.
Is the conversion accurate?
Yes. Each unit differs by a clean factor of 1,000, and the tool applies it at full precision for exact results.
Is this tool free?
Yes — free, instant, and unlimited, with no signup.