Free Power Converter Tool

Convert between 6 supported units including Watt (W), Kilowatt (kW), Megawatt (MW) with adjustable precision and a documented conversion methodology.

What this converter covers

Convert power between watts, kilowatts, megawatts, mechanical horsepower, and BTU (IT) per hour.

Worked example

1 Horsepower (mechanical) = 745.6998716 Watt (W)

Important unit notes

•Horsepower has multiple historical definitions; this tool uses mechanical horsepower.
•Power is a rate, so units such as kW should not be confused with energy units such as kWh.

Conversion factors are maintained against documented standards and definitions. Some displayed decimals are rounded for readability.How accuracy is handled·Sources

Supported units

Watt (W)

Kilowatt (kW)

Megawatt (MW)

Milliwatt (mW)

Horsepower (mechanical)

BTU (IT)/hour

About this converter

This tool converts through a consistent base-unit relationship defined for the power converter. It is designed for quick everyday use while preserving more internal precision than is normally useful to display.

Read the conversion methodology →

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