General Horsepower Calculator
Converts input power in watts to mechanical horsepower.
How it works
Converts input power in watts to mechanical horsepower.
Formula and assumptions
Mechanical horsepower = watts ÷ 745.699872. Metric horsepower and electrical horsepower conventions differ slightly, so use the unit requested by the equipment specification.
Example
Use the sample values, calculate, and change one input at a time.
Frequently asked questions
Are results exact? Results depend on the assumptions and inputs above.
Can I use this for professional decisions? Verify critical results independently.
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Frequently asked questions
Which horsepower definition is used?
The result uses mechanical horsepower, defined as 745.699872 watts.
What should I check before relying on the result?
Confirm the input units and assumptions described above; independently verify safety-critical, medical, financial or professional decisions.