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Watts to Horsepower Converter

1 W = 0.00134102209 hp. Type any value to convert watts to horsepower.

1 W = 0.00134102209 hp

Formula: hp = W × 0.00134102209

Common values
Decimals
In every unit 9 units
Milliwatt (mW) 1,000 mW
Watt (W) 1 W
Kilowatt (kW) 0.001 kW
Megawatt (MW) 0.000001 MW
Horsepower (hp) 0.00134102209 hp
Metric horsepower (PS) 0.001359621617 PS
BTU per hour (BTU/h) 3.412141633 BTU/h
Kilocalorie per hour (kcal/h) 0.8604206501 kcal/h
Ton of refrigeration (TR) 0.0002843451361 TR

Convert on our server?

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

Watts to horsepower table

Formula: hp = W × 0.00134102209

Watt (W)Horsepower (hp)
0.1 W0.000134102209 hp
0.25 W0.0003352555224 hp
0.5 W0.0006705110448 hp
1 W0.00134102209 hp
2 W0.002682044179 hp
3 W0.004023066269 hp
4 W0.005364088358 hp
5 W0.006705110448 hp
6 W0.008046132538 hp
7 W0.009387154627 hp
8 W0.01072817672 hp
9 W0.01206919881 hp
10 W0.0134102209 hp
12 W0.01609226508 hp
15 W0.02011533134 hp
20 W0.02682044179 hp
25 W0.03352555224 hp
30 W0.04023066269 hp
40 W0.05364088358 hp
50 W0.06705110448 hp
60 W0.08046132538 hp
75 W0.1005766567 hp
100 W0.134102209 hp
150 W0.2011533134 hp
200 W0.2682044179 hp
250 W0.3352555224 hp
500 W0.6705110448 hp
1,000 W1.34102209 hp

How to use: Watts to Horsepower

  1. 1 Type the value in watts.
  2. 2 The result in horsepower appears at once – or type in the horsepower 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

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

To convert watts to horsepower, multiply the value by 0.00134102209 (hp = W × 0.00134102209). Example: 100 W = 0.134102209 hp.

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

Frequently asked questions

How do I convert watts to horsepower?

To convert watts to horsepower, multiply the value by 0.00134102209: hp = W × 0.00134102209. For example 100 W = 0.134102209 hp.

What is 1 W in horsepower?

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

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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