Convert Kilowatts to Horsepower
1 kilowatt (kW) equals 1.34102209 horsepower (hp).
1 kW = 1.34102209 hp
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk kilowatt to horsepower converter to paste a column from Excel.
How to Convert Kilowatt to Horsepower
- 1 kW = 1.34102209 hp
- 1 hp = 0.7456998716 kW
- Example: convert 100 kW to hp: 100 kW = 100 × 1.34102209 hp = 134.102209 hp
Reference conditions. hp: Mechanical (imperial) horsepower, 550 ft·lbf/s. Metric horsepower (PS) is about 1.4 % smaller.
Formula
hp = kW × 1.341022089595
Derivation from SI units:
- 1 kW = 10³ W
- 1 hp = 550 ft·lbf/s = 745.69987158227 W
- 1 kW = 1000 W ÷ 745.6998715823 W per hp = 1.341022089595 hp
Both units are defined exactly, so the factor is exact. Kilowatt definition: kilowatt; Horsepower definition: horsepower.
Worked examples
- A 150 kW car engine produces 201.1533134 hp.
150 kW × 1.34102209 = 201.1533134 hp - A 7.5 kW motor is about 10.05766567 hp.
7.5 kW × 1.34102209 = 10.05766567 hp
Kilowatt to Horsepower conversion table
| Kilowatts (kW) | Horsepower (hp) |
|---|---|
| 0.5 kW | 0.6705110448 hp |
| 0.75 kW | 1.005766567 hp |
| 1 kW | 1.34102209 hp |
| 1.5 kW | 2.011533134 hp |
| 2.2 kW | 2.950248597 hp |
| 3 kW | 4.023066269 hp |
| 3.5 kW | 4.693577314 hp |
| 5 kW | 6.705110448 hp |
| 7.5 kW | 10.05766567 hp |
| 10 kW | 13.4102209 hp |
| 11 kW | 14.75124299 hp |
| 15 kW | 20.11533134 hp |
| 22 kW | 29.50248597 hp |
| 37 kW | 49.61781732 hp |
| 50 kW | 67.05110448 hp |
| 75 kW | 100.5766567 hp |
| 100 kW | 134.102209 hp |
| 150 kW | 201.1533134 hp |
| 250 kW | 335.2555224 hp |
Where it's used
Metric power ratings in kW are converted to horsepower for US buyers, boats and motors. 1 kW is about 1.341 hp.
Kilowatt to other power units
| Conversion | 1 kW equals |
|---|---|
| kilowatt to watt | 1000 W |
| kilowatt to milliwatt | 1000000 mW |
| kilowatt to megawatt | 0.001 MW |
| kilowatt to horsepower | 1.34102209 hp |
| kilowatt to metric horsepower | 1.359621617 PS |
| kilowatt to BTU per hour | 3412.141633 BTU/h |
| kilowatt to refrigeration ton | 0.2843451361 TR |
| kilowatt to kilocalorie per hour | 859.8452279 kcal/h |
| kilowatt to foot-pound per second | 737.5621493 ft·lbf/s |
Frequently asked questions
Is 1 kW 1.34 hp?
Yes, to three figures: 1 kW = 1.34102209 hp (mechanical horsepower).
How many horsepower are in 1 kilowatt?
1 kW = 1.34102209 hp.
How do I convert kilowatts to horsepower?
Multiply the value in kW by 1.34102209. For example, 100 kW × 1.34102209 = 134.102209 hp.
Is the kW to hp conversion exact?
Yes. Both units are defined exactly, so the ratio is exact; its decimal form does not terminate and is shown here to 10 significant figures (more with the precision selector).
Sources
- The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures , Table 7, SI prefixes.
- Guide for the Use of the International System of Units (SI), NIST Special Publication 811, 2008 Edition, National Institute of Standards and Technology , Appendix B.8, "horsepower (550 ft·lbf/s)".
Last reviewed: . Factors are stored exactly and computed with 50-digit decimal arithmetic. See how we verify conversion factors.
Cite this page
APA
Scientific Converters. (2026, October 15). Convert Kilowatts to Horsepower. Retrieved October 17, 2026, from https://scientificconverters.com/power/kilowatts-to-horsepower/
IEEE
Scientific Converters, "Convert Kilowatts to Horsepower," scientificconverters.com. Accessed: Oct. 17, 2026. [Online]. Available: https://scientificconverters.com/power/kilowatts-to-horsepower/