Horsepower to Kilowatts Converter

Translate a horsepower rating into kilowatts without treating every hp label as the same unit. Select mechanical, electric, or metric horsepower to match the source specification.

The selected convention is part of the input and remains attached when using Swap. Negative equipment ratings are rejected. Results display up to six decimal places.

Convert The Named Horsepower Unit

The calculator multiplies horsepower by the selected kW-per-horsepower factor. One mechanical hp is 0.7456998715822702 kW, one electric hp is 0.746 kW, and one metric hp is 0.73549875 kW.

Keep Shaft Output And Input Power Separate

Converting a mechanical motor rating to kW does not reveal the electrical input required to produce it. Input power depends on efficiency and other operating details that this page does not estimate.

Specification Check

  • Read the original plate or document for the hp convention.
  • Record the selected convention beside the converted kW value.
  • Do not substitute this result for current, breaker, or energy calculations.

Frequently Asked Questions

Mechanical, electric, and metric horsepower are different unit conventions, so each uses a different factor.

Mechanical horsepower is selected initially and is labelled explicitly. Change it when the source identifies electric or metric horsepower.

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