Horsepower to Watts
Convert mechanical horsepower to watts for engine power, motor ratings, automotive specs, and equipment comparisons.
How to convert mechanical hp to W
To convert a value from mechanical horsepower (mechanical hp) to watts (W), enter the number in the converter above. Use the swap control if you need the reverse direction.
x is the source value in mechanical hp; y is the result in W.
Popular conversions
Quick answers for common mechanical hp to W values are available from the related conversion pages.
Use the related tools section for fixed-value conversions and the reverse direction.
Common conversion table
Quick reference table for common mechanical hp to W values:
| mechanical hp | W |
|---|---|
| 1 | 745.699872 |
| 5 | 3,728.49936 |
| 10 | 7,456.99872 |
| 50 | 37,284.9936 |
| 100 | 74,569.9872 |
| 1,000 | 745,699.872 |
About mechanical horsepower
Mechanical horsepower (mechanical hp) — One mechanical horsepower is 745.699872 watts. This is the common US/imperial horsepower used for engines and motors.
Common uses: Mechanical horsepower is used for engine output, motor ratings, automotive specs, pumps, compressors, and machinery comparisons.
About watts
Watt (W) — The watt is the SI derived unit of power. One watt is one joule per second.
Common uses: Watts are used for electrical power, motors, appliances, generators, lighting, and mechanical power comparisons.
Frequently Asked Questions
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