Voltage Converter
Convert a voltage between volts, millivolts, kilovolts and microvolts - useful for electronics projects, sensors and battery specs.
About the Voltage Converter
This tool converts an electrical voltage between microvolts, millivolts, volts and kilovolts. Voltage is the potential difference that pushes current through a circuit, and these prefixed units cover everything from tiny sensor signals to power-line levels.
How to use it
- Enter the value you know into its field, for example a sensor output in millivolts.
- Read the equivalent in volts, microvolts or kilovolts.
- Convert in either direction when a datasheet or meter uses a different prefix.
The prefixes scale by factors of 1000: 1 V is 1000 mV and 1,000,000 uV, while 1 kV is 1000 V. This is handy when a thermocouple or microphone produces millivolts but your software expects volts, or when a transmission line figure in kilovolts needs to be expressed in volts. Note this converts magnitudes only and does not distinguish AC from DC or RMS from peak voltage - that context comes from your source. All maths runs in your browser and nothing you enter is uploaded.
Frequently asked questions
How many millivolts are in a volt?
One volt equals 1000 millivolts (mV) and 1,000,000 microvolts (uV). A kilovolt is 1000 volts.
How do I convert kilovolts to volts?
Multiply kilovolts by 1000. So an 11 kV distribution line carries 11,000 volts.
Does this converter handle AC and DC voltage?
It converts the numeric magnitude regardless of type. Whether a value is DC, AC RMS or peak depends on your source, so apply the conversion to whichever figure you have.
When would I use microvolts?
Microvolts appear in very small signals such as thermocouples, antennas and biomedical sensors, where outputs are far below one volt and need fine resolution.