Volt (V)
Definition: The volt (symbol: V) is the SI derived unit of electric potential, electric potential difference (voltage), and electromotive force. It is defined as the electric potential between two points of a conducting wire when an electric current of one ampere dissipates one watt of power between those points.
History/origin: The unit is named in honor of the Italian physicist Alessandro Volta (1745–1827), who invented the voltaic pile, the first chemical battery.
Current use: The volt is the universal standard for measuring electrical potential in household electronics, batteries, and power distribution systems worldwide.
Millivolt (mV)
Definition: A millivolt (symbol: mV) is a submultiple of the volt, equal to one-thousandth (1/1,000) of a volt.
History/origin: As scientific instruments became more sensitive in the late 19th century, the millivolt became essential for measuring small electrochemical reactions and biological signals.
Current use: Millivolts are used extensively in medical diagnostics (ECG/EEG), measuring sensor outputs (like thermocouples), and in high-precision electronics testing.
Volt (V) to Millivolt (mV) Conversion Table
| Volt (V) [v] | Millivolt (mV) [mv] |
|---|---|
| 0.01 v | 10 mv |
| 0.1 v | 100 mv |
| 1 v | 1000 mv |
| 2 v | 2000 mv |
| 3 v | 3000 mv |
| 5 v | 5000 mv |
| 10 v | 10000 mv |
| 20 v | 20000 mv |
| 50 v | 50000 mv |
| 100 v | 100000 mv |
| 1000 v | 1000000 mv |
How to Convert Volt (V) to Millivolt (mV)
1 v = 1000 mv
1 mv = 0.001 v
Example: convert 15 v to mv:
15 v = 15 × 1000 mv = 15000 mv
Did You Know?
- Did you know? Different countries use different voltages! While most of the world (including Bangladesh and Europe) uses 220-240V, North America uses 110-120V for standard household outlets.
- Millivolts (mV) are used to measure tiny electrical signals in the human body. For example, an ECG machine detects signals from your heart that are often only a few millivolts in strength.