๐ Read the complete Power Calculator guide โ
๐ All calculations happen in your browser. No data is sent to any server. No sign-up required.
Formula
P = V ร I (Power = Voltage ร Current)
Example
220V ร 5A = 1100W = 1.1 kW
Frequently Asked Questions
What is a watt?
Unit of power โ rate of energy transfer. 1 watt = 1 joule per second.
How do I find amps from watts and volts?
I = P รท V. 1100W รท 220V = 5A.
Difference between watts and watt-hours?
Watts is a rate; watt-hours is energy consumed over time.