Electrical Unit Converter

Convert electrical units: current (A, mA, kA), voltage (V, mV, kV), power (W, kW), energy (Wh, kWh), apparent and reactive power.

From:

To:

Source Unit

Milliampere

Target Unit

Ampere

Common Conversions

Milliamps to Amps Kilovolts to Volts Watts to Kilowatts Kilowatt-hours to Watt-hours Kilovolt-amperes to Volt-amperes

About the Electrical Unit Converter

Voltage (volts) is the electrical pressure, current (amperes) is the flow of charge, and power (watts) is their product for a resistive load: 230 V × 10 A = 2,300 W.

In alternating-current systems, apparent power (VA) includes both the useful real power (W) and reactive power (VAR) that oscillates between source and load. Transformers and UPS units are therefore rated in kVA.

Battery capacity is often given in milliamp-hours; multiply by the battery voltage to get watt-hours, which is the figure airlines and energy calculations use.

See how the measurement systems relate on our Unit Systems page.