Popular conversions
4 pairsVolt ↔ Kilovolt
V ↔ kV
Ampere ↔ Milliampere
A ↔ mA
Volt ↔ Millivolt
V ↔ mV
Ampere ↔ Kiloampere
A ↔ kA
Unit guides
6 unitsDetailed guide to Electricity
Electrical calculations rely on several distinct physical quantities, including voltage and current.
This category begins with two fundamental conversion pairs that are frequently needed in electronics, power systems and instrumentation.
- Physical quantity group
- Electricity
- Voltage unit
- Volt
- Current unit
- Ampere
- Typical prefixes
- kilo and milli
- Typical use
- Power systems, devices and instrumentation
Voltage and current
Voltage represents electric potential difference, while current represents the rate of electric charge flow.
They are different physical quantities, but both rely heavily on metric prefixes in practical work.
Volts, kilovolts, amperes and milliamperes
The volt and ampere are standard SI electrical units. Their prefixed forms are used to express much larger or smaller values more clearly.
One kilovolt equals 1,000 volts, and one ampere equals 1,000 milliamperes.
How are electrical units converted?
The conversion factors here are purely decimal prefix relationships.
These exact ratios make the tools useful for equipment ratings, test values and quick sanity checks.
Electrical units
| Unit | Symbol | Information |
|---|---|---|
| Volt | V | View unit guide |
| Kilovolt | kV | View unit guide |
| Ampere | A | View unit guide |
| Milliampere | mA | View unit guide |
| Millivolt | mV | View unit guide |
| Kiloampere | kA | View unit guide |
Sources
The definitions and conversion relationships on this page are aligned with standard metrology and SI reference material.