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Horsepower to Watts Converter

1 hp = 745.6998716 W. Type any value to convert horsepower to watts.

1 hp = 745.6998716 W

Formula: W = hp × 745.6998716

Common values
Decimals
In every unit 9 units
Milliwatt (mW) 745,699.8716 mW
Watt (W) 745.6998716 W
Kilowatt (kW) 0.7456998716 kW
Megawatt (MW) 0.0007456998716 MW
Horsepower (hp) 1 hp
Metric horsepower (PS) 1.013869665 PS
BTU per hour (BTU/h) 2,544.433578 BTU/h
Kilocalorie per hour (kcal/h) 641.6155683 kcal/h
Ton of refrigeration (TR) 0.2120361315 TR

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If you continue, the file is uploaded over an encrypted connection and converted on our server. You can keep using the site meanwhile. The original is deleted as soon as it is converted; the result is kept for 6 hours so you can download it, and you can delete it at any time. Files are never shared or used for anything else.

Calculated in your browser – nothing you type is sent anywhere. Privacy details

Horsepower to watts table

Formula: W = hp × 745.6998716

Horsepower (hp)Watt (W)
0.1 hp74.56998716 W
0.25 hp186.4249679 W
0.5 hp372.8499358 W
1 hp745.6998716 W
2 hp1,491.399743 W
3 hp2,237.099615 W
4 hp2,982.799486 W
5 hp3,728.499358 W
6 hp4,474.199229 W
7 hp5,219.899101 W
8 hp5,965.598973 W
9 hp6,711.298844 W
10 hp7,456.998716 W
12 hp8,948.398459 W
15 hp11,185.49807 W
20 hp14,913.99743 W
25 hp18,642.49679 W
30 hp22,370.99615 W
40 hp29,827.99486 W
50 hp37,284.99358 W
60 hp44,741.99229 W
75 hp55,927.49037 W
100 hp74,569.98716 W
150 hp111,854.9807 W
200 hp149,139.9743 W
250 hp186,424.9679 W
500 hp372,849.9358 W
1,000 hp745,699.8716 W

How to use: Horsepower to Watts

  1. 1 Type the value in horsepower.
  2. 2 The result in watts appears at once – or type in the watts field to convert back.
  3. 3 Pick a common value, round to fewer decimals or swap the units with one click.
  4. 4 Copy the result, or open “In every unit” to see the value in all units of power.

About this tool

Horsepower (hp) is a unit of power (imperial and US customary); 1 hp = 745.6998716 W. Watt (W) is a unit of power (SI).

To convert horsepower to watts, multiply the value by 745.6998716 (W = hp × 745.6998716). Example: 100 hp = 74,569.98716 W.

Calculated in your browser – nothing you type is sent anywhere.

Frequently asked questions

How do I convert horsepower to watts?

To convert horsepower to watts, multiply the value by 745.6998716: W = hp × 745.6998716. For example 100 hp = 74,569.98716 W.

What is 1 hp in watts?

1 hp = 745.6998716 W. The other way round, 1 W = 0.00134102209 hp.

How exact is the result?

The converter uses the official definitions of both units and shows up to 10 significant digits; choose 0–6 decimals to round. Both units are defined exactly in terms of each other, so the factor itself is exact.

Can I convert other units of power here?

Yes – choose any of the 9 units of power in the From and To lists, or switch to another measurement at the top.

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