What Power Converter does
Power Converter converts a numeric power between the explicitly labeled units in the selector. Changing the value or either unit recalculates the result immediately.
Values normalize through watts; the table uses 745.6998715822702 watts per mechanical horsepower and 0.2930710701722222 watt per BTU per hour. This is a unit conversion, not a measurement or lookup: the result is determined only by the number and units supplied in the browser.
How to use Power Converter
- Enter a finite numeric power value.
- Choose the source unit and the unit required for the result.
- Read the converted value with its destination symbol, or use Swap units to reverse the direction.
- Carry only the precision justified by the original measurement when copying the result.
Important details
Supported units
The available units are watt, kilowatt, megawatt, mechanical horsepower, BTU per hour, and foot-pound per second. Mechanical horsepower is named explicitly because other horsepower definitions exist.
A distinction that matters
Power is a rate of energy transfer, not energy itself. Kilowatts cannot be converted to kilowatt-hours without an elapsed time, and BTU/h is different from a quantity of BTU.
Practical uses
- Compare motor ratings in mechanical horsepower and kilowatts.
- Translate heating or cooling rates between BTU/h and watts.
- Reconcile equipment specifications that use different power units.
Privacy and limitations
Power Converter performs its arithmetic locally. PagesTools does not receive the entered value or selected units.
The tool does not calculate electrical power from voltage and current, account for efficiency or power factor, or convert energy consumption. Confirm which horsepower convention a source uses.