This page will help you quickly and easily convert kilowatts (kW) to horsepower (hp) with a handy calculator and table.
Kilowatts to Horsepower Converter
Simply enter the kilowatts value and click the “Convert” button to see the equivalent horsepower values. Use the “Reset” button to clear the form and start a new conversion.
Basic Information About Units
Kilowatt
The watt (W) is the power which in one second gives rise to energy of 1 joule (J). Consequently, 1 kW = 1000 W = 1000 J / 1s.
Horsepower
Horsepower (hp) is a unit of measurement of power, or the rate at which work is done. It is commonly used to describe the power of engines in vehicles, machines, and even electric motors.
There are several types of horsepower:
- Imperial/mechanical horsepower (Php(I)): Commonly used in the automotive industry, defined as 745.7 watts or 33,000 ft·lbf/min.
- Electrical horsepower (Php(E)): Used for electric motors and air conditioning systems, equal to 746 watts.
- Metric horsepower (Php(M)): Used mainly in Europe, defined as 735.5 watts or 98.6% of an imperial horsepower.
- Boiler horsepower (Php(S)): Used for rating steam boilers, where one boiler horsepower equals 9.8095 kilowatts.
Conversion Formulas
Kilowatts to Imperial/Mechanical Horsepower
To convert kilowatts (kW) to imperial/mechanical horsepower (hp(I)):
Php(I) = P(kW) / 0,745699872 = 1.341 * P(kW)
Example.
A water pump is rated at 75 kilowatts (kW) of power output. To calculate the equivalent horsepower (hp), you can use the conversion factor of 1 kW = 1.341 hp. Therefore, Php(I) = 75 × 1.341 hp = 100.575 hp.
Kilowatts to Electrical Horsepower
To convert kilowatts (kW) to electrical horsepower (hp(E)):
Php(E) = P(kW) / 0,746 = 1.34048 * P(kW)
Example.
An industrial electric motor is rated at 22 kilowatts (kW) of power input. To calculate the equivalent horsepower (hp), you can use the conversion factor of 1 kW = 1.34048 hp. Therefore, Php(E) = 22 × 1.34048 hp = 29.491 hp.
Kilowatts to Metric Horsepower
To convert kilowatts (kW) to metric horsepower (hp(M)):
Php(M) = P(kW) / 0,73549875 = 1.3596 * P(kW)
Example.
Converting 15 kW to netric horsepower.
Php(M) = P(kW) / 0,73549875 = 20.394 hp
Kilowatts to Boiler Horsepower
To convert kilowatts (kW) to boiler horsepower (hp(S)):
Php(S) = P(kW) / 9.8095
Example.
Converting 10 kW to Boiler Horsepower.
Php(S) = 10 / 9.8095 = 1.0194 hp
Kilowatts to Horsepower Conversion Table
| Kilowatts (kW) | Mechanical Horsepower (hp(I)) | Electric Horsepower (hp(E)) | Metric Horsepower (hp(M)) | Boiler Horsepower (hp(S)) |
|---|---|---|---|---|
| 1 kW | 1.341 | 1.3405 | 1.3596 | 0.101942 |
| 2 kW | 2.682 | 2.681 | 2.7192 | 0.203884 |
| 3 kW | 4.0231 | 4.0214 | 4.0789 | 0.305826 |
| 4 kW | 5.3641 | 5.3619 | 5.4385 | 0.407768 |
| 5 kW | 6.7051 | 6.7024 | 6.7981 | 0.50971 |
| 6 kW | 8.0461 | 8.0429 | 8.1577 | 0.611652 |
| 7 kW | 9.3872 | 9.3834 | 9.5174 | 0.713594 |
| 8 kW | 10.73 | 10.72 | 10.88 | 0.815536 |
| 9 kW | 12.07 | 12.06 | 12.24 | 0.917478 |
| 10 kW | 13.41 | 13.4 | 13.6 | 1.0194 |
| 11 kW | 14.75 | 14.75 | 14.96 | 1.1214 |
| 12 kW | 16.09 | 16.09 | 16.32 | 1.2233 |
| 13 kW | 17.43 | 17.43 | 17.68 | 1.3252 |
| 14 kW | 18.77 | 18.77 | 19.03 | 1.4272 |
| 15 kW | 20.12 | 20.11 | 20.39 | 1.5291 |
| 16 kW | 21.46 | 21.45 | 21.75 | 1.6311 |
| 17 kW | 22.8 | 22.79 | 23.11 | 1.733 |
| 18 kW | 24.14 | 24.13 | 24.47 | 1.835 |
| 19 kW | 25.48 | 25.47 | 25.83 | 1.9369 |
| 20 kW | 26.82 | 26.81 | 27.19 | 2.0388 |
| 21 kW | 28.16 | 28.15 | 28.55 | 2.1408 |
| 22 kW | 29.5 | 29.49 | 29.91 | 2.2427 |
| 23 kW | 30.84 | 30.83 | 31.27 | 2.3447 |
| 24 kW | 32.18 | 32.17 | 32.63 | 2.4466 |
| 25 kW | 33.53 | 33.51 | 33.99 | 2.5486 |
| 26 kW | 34.87 | 34.85 | 35.35 | 2.6505 |
| 27 kW | 36.21 | 36.19 | 36.71 | 2.7524 |
| 28 kW | 37.55 | 37.53 | 38.07 | 2.8544 |
| 29 kW | 38.89 | 38.87 | 39.43 | 2.9563 |
| 30 kW | 40.23 | 40.21 | 40.79 | 3.0583 |
| 31 kW | 41.57 | 41.55 | 42.15 | 3.1602 |
| 32 kW | 42.91 | 42.9 | 43.51 | 3.2621 |
| 33 kW | 44.25 | 44.24 | 44.87 | 3.3641 |
| 34 kW | 45.59 | 45.58 | 46.23 | 3.466 |
| 35 kW | 46.94 | 46.92 | 47.59 | 3.568 |
| 36 kW | 48.28 | 48.26 | 48.95 | 3.6699 |
| 37 kW | 49.62 | 49.6 | 50.31 | 3.7719 |
| 38 kW | 50.96 | 50.94 | 51.67 | 3.8738 |
| 39 kW | 52.3 | 52.28 | 53.03 | 3.9757 |
| 40 kW | 53.64 | 53.62 | 54.38 | 4.0777 |
| 75 kW | 100.58 | 100.54 | 101.97 | 7.65 |
| 1000 kW | 1341.02 | 1340.48 | 1359.62 | 101.94 |
Similar Converters
We hope this tool and information has been helpful. Don’t forget to use our other converters for more accurate calculations!
- BHP to Kilowatts converter
- Kilowatts to BHP
- BTU/hr to Kilowatts (kW)
- Kilowatts to BTU/hr
- Kilowatts to Watts
- Watts to Kilowatts
- Kilowatts to Megawatts
- Megawatts to Kilowatts
- Kilowatts to Milliwatts
- Milliwatts to Kilowatts
- Kilowatts to Refrigeration Tons
- Refrigeration Tons to Kilowatts
- Horsepower to Watts
- Watts to Horsepower
References
- IEC 80000-6-2022: Quantities and units – Part 6: Electromagnetism
- BIPM, SI Brochure: The International System of Units 9th edition (updated in 2022)
