Horsepower (mechanical) to Kilowatt Converter
1 horsepower is exactly 0.74569987158227022 kilowatts. Convert horsepower (hp) to kilowatts (kW) below: type a value and the result updates as you type.
hp to kW calculator
Result
Horsepower (mechanical) to Kilowatt conversion
1 hp = 0.74569987158227022 kWone horsepower in kilowatts
1 kW ≈ 1.34102209 hpone kilowatt in horsepower
Horsepower (mechanical) (hp): Exactly 550 foot-pounds-force per second (about 745.69987 watts).
Kilowatt (kW): Exactly 1000 watts.
Source:Horsepower (mechanical): NIST Special Publication 811 (2008), Appendix B.8; Kilowatt: SI Brochure, 9th edition (BIPM, 2019)
How to convert horsepower to kilowatts
To convert horsepower to kilowatts, multiply the number of horsepower by 0.74569987158227022.
Formula
kW = hp × 0.74569987158227022
Examples
- 5 hp = 5 × 0.74569987158227022 = 3.7284993579113511 kW
- 25 hp = 25 × 0.74569987158227022 = 18.6424967895567555 kW
- 100 hp = 100 × 0.74569987158227022 = 74.569987158227022 kW
Horsepower (mechanical) to Kilowatt conversion table
| Horsepower (mechanical) (hp) | Kilowatt (kW) |
|---|---|
| 0.1 hp | 0.074569987158227022 kW |
| 0.5 hp | 0.37284993579113511 kW |
| 1 hp | 0.74569987158227022 kW |
| 2 hp | 1.49139974316454044 kW |
| 3 hp | 2.23709961474681066 kW |
| 5 hp | 3.7284993579113511 kW |
| 10 hp | 7.4569987158227022 kW |
| 20 hp | 14.9139974316454044 kW |
| 25 hp | 18.6424967895567555 kW |
| 50 hp | 37.284993579113511 kW |
| 100 hp | 74.569987158227022 kW |
| 250 hp | 186.424967895567555 kW |
| 500 hp | 372.84993579113511 kW |
| 1000 hp | 745.69987158227022 kW |
Values rounded to 10 significant digits where needed.
Frequently asked questions
- How many kilowatts are in one horsepower?
- One horsepower is exactly 0.74569987158227022 kilowatts.
- How do I convert kilowatts to horsepower?
- To convert kilowatts to horsepower, multiply the number of kilowatts by about 1.34102209. The formula is hp = kW × 1.34102209.
- Is this conversion exact?
- Yes. Both units have exact definitions and the factor 0.74569987158227022 is exact. Displayed results are only rounded when they have many decimal places.
- Which is larger, a horsepower or a kilowatt?
- A kilowatt is about 1.34102209 times larger than a horsepower. In other words, a horsepower is 0.74569987158227022 of a kilowatt.