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Convert horsepower to watts

Convert horsepower (hp) to watts (W). 1 hp = 745.7 W, and 1 W = 0.00134102 hp.

1 hp = 745.7 W

HP to Watts formula

W = hp × 745.6998716

Multiply the number of horsepower by 745.6998716.

Example: To convert 1 hp to watts: 1 × 745.6998716 = 745.7 W.

Quick answers

What is 1 hp in watts?
1 hp = 745.7 W
What is 100 hp in watts?
100 hp = 74,570 W
What is 200 hp in watts?
200 hp = 149,140 W
What is 300 hp in watts?
300 hp = 223,710 W

HP to Watts conversion table

Watts to HP table
horsepower (hp)watts (W)
1 hp745.7 W
5 hp3,728.5 W
10 hp7,457 W
50 hp37,285 W
100 hp74,570 W
150 hp111,855 W
200 hp149,140 W
250 hp186,425 W
300 hp223,710 W
400 hp298,280 W
500 hp372,850 W
1,000 hp745,700 W

Frequently asked questions

How many watts are in a horsepower?

There are 745.7 watts in a horsepower (1 hp = 745.7 W).

How do I convert horsepower to watts?

Multiply the number of horsepower by 745.6998716. To convert 1 hp to watts: 1 × 745.6998716 = 745.7 W.

Is the HP to Watts conversion exact?

Yes. Both units are defined exactly, so 1 horsepower is exactly 745.699871582 watts. Results on this page are rounded to six significant digits; pick more decimals in the converter if you need them.

What is 1 hp in watts?

1 hp = 745.7 W.

How do I convert watts back to horsepower?

Use the reverse relationship: 1 W = 0.00134102 hp. The Watts to HP page has a converter and a full table.

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