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Horsepower to Watts

Convert horsepower (hp) to watts (W). Type in either box; the other updates as you go.

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1 hp = 745.69987 W

1 horsepower equals745.6998716 W
1 watt equals0.00134102209 hp
FormulaW = hp × 745.6998716

How to convert horsepower to watts

To convert horsepower to watts, multiply the number of horsepower by 745.6998716.

W = hp × 745.6998716

Example

Convert 5 horsepower to watts:

5 hp × 745.6998716 = 3,728.5 W

Horsepower to watt conversion chart

Horsepower (hp)Watts (W)
1 hp745.6999 W
2 hp1,491.4 W
3 hp2,237.1 W
4 hp2,982.799 W
5 hp3,728.499 W
6 hp4,474.199 W
7 hp5,219.899 W
8 hp5,965.599 W
9 hp6,711.299 W
10 hp7,456.999 W
12 hp8,948.398 W
15 hp11,185.5 W
20 hp14,914 W
25 hp18,642.5 W
30 hp22,371 W
40 hp29,827.99 W
50 hp37,284.99 W
60 hp44,741.99 W
70 hp52,198.99 W
75 hp55,927.49 W
80 hp59,655.99 W
90 hp67,112.99 W
100 hp74,569.99 W
150 hp111,855 W
200 hp149,140 W
250 hp186,425 W
500 hp372,849.9 W
1,000 hp745,699.9 W

Going the other way? See the watts to horsepower chart.

About the units

Horsepower (hp)

Mechanical (imperial) horsepower is 550 foot-pounds per second, about 745.7 watts. US car engines are rated in it.

Watt (W)

The watt is the SI unit of power, one joule per second.

Frequently asked questions

How many watts are in a horsepower?

There are 745.6998716 watts in a horsepower.

How many horsepower are in a watt?

There are 0.00134102209 horsepower in a watt.

How do you convert horsepower to watts?

To convert horsepower to watts, multiply the number of horsepower by 745.6998716.

What is 5 horsepower in watts?

5 horsepower equals 3,728.5 watts.

Convert between watts, kilowatts, horsepower and BTU per hour. Open the power converter to see a value in every unit at once.