Power Converter
Convert power values instantly between watts, kilowatts, megawatts, horsepower and BTU per hour. Whether you are sizing a generator, comparing motor ratings, or reading appliance labels, this free tool updates live as you type — no signup needed.
—
How to use
- Enter your power value in the input box above.
- Choose the unit you are converting from and the unit you need.
- The result updates instantly — try another unit to compare side by side.
- For motors, note the small difference between hp and metric PS in the note below.
Tips
- Motor horsepower (hp) and metric horsepower (PS) differ slightly — check which one your rating uses.
- For air conditioning, remember that 1 ton of refrigeration equals 3516.85 W.
- When comparing appliances, convert everything to watts first so the numbers line up.
Note
For AC cooling capacity, 1 ton of refrigeration = 3516.85 W. There is a small difference between motor hp and metric PS.