Power Calculator – Electrical Power

Calculate electrical power in watts from voltage and current.

Voltage (V)

Current (A)

Power Calculator Formula

P = V × I

Voltage: 220V, Current: 10A → P = 2,200W

What is a watt?

Calculate voltage using Ohm's Law from current and resistance.

Calculate electrical current from voltage and resistance.

Calculate energy consumption in kWh and electricity cost.