Watts to Kilowatts & Horsepower Converter

This free online power converter converts between Watt, Kilowatt, Megawatt, Horsepower, and BTU/h. Enter a value in any field and the result updates instantly — no sign-up, no ads blocking the tool, and it runs entirely in your browser.

Type a number into any unit field above and every other field recalculates automatically. All conversions use standard, internationally recognized conversion factors.