Power Converter
Convert watts, horsepower, and kilowatts.
Power units, converted
Power is the rate of energy use, quoted in watts for electronics, kilowatts for appliances, and horsepower for engines. One mechanical horsepower is about 745.7 watts.
It bridges spec sheets that mix units — a motor rated in horsepower against a power supply in watts, or a heater in kilowatts — so you can size components against each other.
Metric vs mechanical hp
There are two horsepower definitions that differ slightly, which this keeps straight. All math runs locally in your browser with nothing uploaded. Your values are converted on the page and never uploaded.
Frequently Asked Questions
How does the power converter work?
Power converts through watts. A 150 horsepower motor is about 111.855 kilowatts using mechanical horsepower.
When should I use this converter?
Use it for motors, generators, HVAC equipment, appliances, and comparing vehicle or machinery specifications.
What is the main limitation?
Horsepower has regional variants; this tool uses mechanical horsepower, not metric horsepower.
Is this converter private?
Yes. The conversion runs entirely in your browser, so your values are not uploaded, stored, or sent to a server.
More free browser utilities for conversion, formatting, and technical cleanup.