Watts to Horsepower (W to hp) Converter
1 mechanical horsepower = 745.699872 watts. Used for electric motors, engines and power ratings.
Formula:1 hp = 745.7 W
⇄ Switch to Horsepower To WattsWatt to Horsepower (mech) — common values
1 W0.00134102 hp
10 W0.0134102 hp
100 W0.134102 hp
1,000 W1.3410219 hp
10,000 W13.410219 hp
100,000 W134.10219 hp
1,000,000 W1,341.0219 hp
How to convert Watts To Horsepower
To convert watts to horsepower, use the formula: 1 hp = 745.7 W. Enter any value in the input field above and the result appears instantly. Click the ⇄ button or use the “Switch to Horsepower To Watts” link to reverse the conversion.
All conversions use precise mathematical constants validated against international SI standards (NIST and ISO 80000) and are accurate to 8 significant figures.
Frequently Asked Questions
What is the formula to convert Watts To Horsepower?
1 hp = 745.7 W. 1 mechanical horsepower = 745.699872 watts. Used for electric motors, engines and power ratings.
Is this converter free?
Yes — completely free, no registration required. Works instantly in your browser.
How do I convert Horsepower To Watts?
Use the Horsepower To Watts converter or click the ⇄ switch button above.
More Power conversions
Need more power conversions?
The full converter supports all unit combinations