Electricity
What is a Millivolt? (mV)
Definition
A millivolt (symbol: mV) is one thousandth of a volt (0.001 V). Millivolts are used when measuring very small electrical signals, such as those produced by sensors, thermocouples, biological signals (ECG), and precision reference circuits where standard volt measurements would lack the required resolution.
Common Uses
- › Thermocouple and temperature sensor output
- › ECG and biological signal measurement
- › Precision analog circuit design
- › Battery cell voltage monitoring
Converters
Key Facts
- SymbolmV
- CategoryElectricity
- 1 mV = 0.001 V
- 1,000 mV = 1 V
- 1 mV = 1,000 µV
Related Terms
About the Millivolt
A millivolt (symbol: mV) is one thousandth of a volt (0.001 V). Millivolts are used when measuring very small electrical signals, such as those produced by sensors, thermocouples, biological signals (ECG), and precision reference circuits where standard volt measurements would lack the required resolution.
Equivalents and conversions
- 1 mV = 0.001 V
- 1,000 mV = 1 V
- 1 mV = 1,000 µV