Horsepower to Watts (hp to W) Converter
1 mechanical horsepower = 745.699872 watts. Enter any power in hp to convert to watts.
Formula:1 hp = 745.7 W
⇄ Switch to Watts To HorsepowerHorsepower (mech) to Watt — common values
1 hp745.7 W
10 hp7,457 W
100 hp74,570 W
1,000 hp745,700 W
10,000 hp7,457,000 W
100,000 hp74,570,000 W
1,000,000 hp745,700,000 W
How to convert Horsepower To Watts
To convert horsepower to watts, 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 Watts To Horsepower” 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 Horsepower To Watts?
1 hp = 745.7 W. 1 mechanical horsepower = 745.699872 watts. Enter any power in hp to convert to watts.
Is this converter free?
Yes — completely free, no registration required. Works instantly in your browser.
How do I convert Watts To Horsepower?
Use the Watts To Horsepower converter or click the ⇄ switch button above.
More Power conversions
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The full converter supports all unit combinations