Millivolt (mV)
One thousandth of a volt. Thermocouples and sensors output millivolts.
What is a millivolt?
- Symbol
- mV
- Quantity
- Electric Potential (Voltage)
- Unit system
- SI
- Definition
- One thousandth of a volt. Thermocouples and sensors output millivolts.
- Exact
- Yes, the value is exact by definition
- Source
- SI Brochure, 9th edition (BIPM, 2019)
Common applications
Used for thermocouple and sensor outputs, ECG signals and small voltage drops in circuits.
Millivolt in other electric potential (voltage) units
- 1 mV = 0.001 VMillivolt to Volt converter
- 1 mV = 1000 µVMillivolt to Microvolt converter
- 1 mV = 0.000001 kVKilovolt
- 1 mV = 1e-9 MVMegavolt
- 1 mV = 100000 abVAbvolt
- 1 mV ≈ 0.000003335640952 statVStatvolt
Millivolt quick reference
| Millivolt | Volt | Microvolt | Kilovolt |
|---|---|---|---|
| 1 mV | = 0.001 V | = 1000 µV | = 0.000001 kV |
| 10 mV | = 0.01 V | = 10000 µV | = 0.00001 kV |
| 100 mV | = 0.1 V | = 100000 µV | = 0.0001 kV |
| 1000 mV | = 1 V | = 1000000 µV | = 0.001 kV |
Where the millivolt fits
The next smaller electric potential (voltage) unit is the microvolt (µV). 1 mV = 1000 µV, and 1 µV = 0.001 mV.
The next larger electric potential (voltage) unit is the volt (V). 1 mV = 0.001 V, and 1 V = 1000 mV.
Frequently asked questions
- How many volts are in one millivolt?
- One millivolt = 0.001 V (volts).
- How many microvolts are in one millivolt?
- One millivolt = 1000 µV (microvolts).
- How many kilovolts are in one millivolt?
- One millivolt = 0.000001 kV (kilovolts).