1 Horsepower Expressed in Watts (746 W)

One horsepower equals 745.7 watts, calculated as 745.7 joules of work done every second.

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How to use this tool

Enter work done (w), time, force (optional, instead of w) and distance (if using force) in the fields above.
Results update instantly as you type — or click Calculate.
Read your power and the full breakdown beneath it.

Confirm the conversion of 1 horsepower to watts using the physics power formula P = W/t.

Frequently asked questions

What is the difference between power and energy?: Energy (J) is the total amount of work done; power (W) is how fast it is done. A 100 W bulb running for 36,000 s uses 3,600,000 J = 1 kWh.
How do I convert watts to horsepower?: Divide watts by 745.7. A 1000 W motor produces about 1.34 hp.