Volt (V)
SI unit of electric potential difference (voltage): one watt per ampere.
What is a volt?
- Symbol
- V
- Quantity
- Electric Potential (Voltage)
- Unit system
- SI
- Definition
- SI unit of electric potential difference (voltage): one watt per ampere.
- Exact
- Yes, the value is exact by definition
- Source
- SI Brochure, 9th edition (BIPM, 2019)
Common applications
Used for batteries, mains supply, chargers and electronics. Common values include 1.5 V cells and 12 V car systems.
Volt in other electric potential (voltage) units
- 1 V = 1000 mVVolt to Millivolt converter
- 1 V = 1000000 µVMicrovolt
- 1 V = 0.001 kVVolt to Kilovolt converter
- 1 V = 0.000001 MVMegavolt
- 1 V = 100000000 abVAbvolt
- 1 V ≈ 0.003335640952 statVStatvolt
Volt quick reference
| Volt | Millivolt | Kilovolt | Microvolt |
|---|---|---|---|
| 1 V | = 1000 mV | = 0.001 kV | = 1000000 µV |
| 10 V | = 10000 mV | = 0.01 kV | = 10000000 µV |
| 100 V | = 100000 mV | = 0.1 kV | = 100000000 µV |
| 1000 V | = 1000000 mV | = 1 kV | = 1000000000 µV |
Where the volt fits
The next smaller electric potential (voltage) unit is the millivolt (mV). 1 V = 1000 mV, and 1 mV = 0.001 V.
The next larger electric potential (voltage) unit is the statvolt (statV). 1 V ≈ 0.003335640952 statV, and 1 statV = 299.792458 V.
Frequently asked questions
- How many millivolts are in one volt?
- One volt = 1000 mV (millivolts).
- How many kilovolts are in one volt?
- One volt = 0.001 kV (kilovolts).
- How many microvolts are in one volt?
- One volt = 1000000 µV (microvolts).