ReadyCalculator

Wattage to Amperage

I = P/V or I = P/(√3 V PF)

How to Use This Calculator

Choose phase, enter power (W) and voltage (V). For three-phase, include power factor to convert watts to amps.

Formula

I_single = P / V

I_three = P / (√3 V PF)

Frequently Asked Questions

kW vs W?

If you have kW, convert: W = kW × 1000 before using the calculator.