Power Converter
Convert power between watts, kilowatts, horsepower, BTU per hour, and foot-pounds per second.
How it works
Power is the rate of doing work, and it shows up under a confusing pile of names — watts on a light bulb, horsepower on an engine, BTU per hour on an air conditioner. They all measure the same thing.
This converter ties them together with the standard relationships: one mechanical horsepower is about 745.7 watts, and one watt is roughly 3.412 BTU per hour. Enter any value and read the rest.
It is handy any time two spec sheets speak different languages — comparing a heater rated in BTU to one rated in watts, or an engine in horsepower to a motor in kilowatts.
Frequently asked questions
How do I use this converter?
Enter a value and choose the unit you are starting from. The tool instantly shows the equivalent in every other power unit, so there is nothing to submit.
Are the conversions exact?
They use standard published conversion factors, so they are accurate for everyday and technical use. Results are rounded for readability, not because the math is approximate.
Can I convert in either direction?
Yes. Pick any unit as your starting point and read off the others — the conversion works both ways.