ToolNest

Power Converter

Watts, horsepower (both kinds), BTU/h and foot-pounds/s.

Reference (in watts):

  • 1 Kilowatt (kW) = 1,000 watts
  • 1 Megawatt (MW) = 1,000,000 watts
  • 1 Mechanical horsepower (hp) = 745.699871582 watts
  • 1 Metric horsepower (PS / cv) = 735.49875 watts
  • 1 BTU per hour = 0.2930710702 watts
  • 1 Foot-pound/second (ft·lbf/s) = 1.3558179483 watts
  • 1 Calorie/second (cal/s) = 4.184 watts

How to use the Power tool

  1. Enter your power in the fields above.
  2. Adjust any slider or type an exact number — the answer updates as you go.
  3. Copy the result and close the tab. Nothing you entered was sent anywhere.

About the Power tool

Convert power across mechanical horsepower (745.7 W), metric PS/cv (735.5 W), kilowatts, BTU per hour and foot-pound/second.

US spec sheets use hp, Europe uses kW — 100 kW is about 134 hp, a fact car shoppers meet on every import decision.

Everything runs locally in your browser: no data is uploaded, no account is needed, and it works offline once the page has loaded.

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