100 kW to hp
- Kilowatts (kW)
- 100 kW
- Horsepower
- 134.10220896 hp
Checked against: Exact-fraction computation from the legal unit definitions (scripts/gen-pairs.py, Python fractions)
Kilowatts to horsepower converter
Convert kilowatts to horsepower (kW to hp) with the exact factor, a conversion chart and worked steps.
Horsepower
hp
Horsepower: 134.10220896 hp
- Conversion
- 100 kW = 134.1022089595 hp
- 1 hp in kilowatts
- 0.7456998716kW
100 kilowatts is 134.1022089595 horsepower. Going the other way, 1 hp is 0.74569987 kW.
Kilowatts to horsepower
KW to hp chart
| Kilowatts | Horsepower |
|---|---|
| 10 | 13.4102 |
| 25 | 33.5256 |
| 50 | 67.0511 |
| 75 | 100.5767 |
| 100 | 134.1022 |
| 150 | 201.1533 |
| 200 | 268.2044 |
| 300 | 402.3066 |
| 500 | 670.511 |
How it's calculated S
Conversion factor
Rounded here for display; the calculation uses 50 significant digits.
Multiply
About the kilowatts to horsepower converter
Kilowatts describe power, a rate of energy use or production. Restating a motor's kW rating as horsepower can help compare equipment labels. It does not turn kW into kWh; an energy total also needs the duration and operating load.
One kilowatt is about 1.3410220896 horsepower, so 100 kW is 134.102209 hp. To convert kW to hp, multiply by 1.3410220896; to convert back, multiply by 0.7456998716.
Mechanical horsepower is 550 foot-pounds per second, about 745.7 W; metric horsepower (PS) is 735.49875 W. The factor has no exact decimal form, so results are computed with 50 significant digits and rounded only for display.
Worked examples
75 kW to hp
- Kilowatts (kW)
- 75 kW
- Horsepower
- 100.57665672 hp
Checked against: Exact-fraction computation from the legal unit definitions (scripts/gen-pairs.py, Python fractions)
300 kW to hp
- Kilowatts (kW)
- 300 kW
- Horsepower
- 402.306626879 hp
Checked against: Exact-fraction computation from the legal unit definitions (scripts/gen-pairs.py, Python fractions)
Questions
When would I convert kW to hp?
Kilowatts describe power, a rate of energy use or production. Restating a motor's kW rating as horsepower can help compare equipment labels. It does not turn kW into kWh; an energy total also needs the duration and operating load.
How many horsepower are in a kilowatt?
One kilowatt is about 1.3410220896 horsepower. Mechanical horsepower is 550 foot-pounds per second, about 745.7 W; metric horsepower (PS) is 735.49875 W.
How do you convert kW to hp?
Multiply the number of kilowatts by 1.3410220896. For example, 100 kW × 1.3410220896 = 134.102209 hp. To go the other way, divide by 1.3410220896.
How can I estimate kW to hp without a calculator?
Multiply by 1.34. That is 0.07622% low of the exact factor 1.3410220896, so 100 kW comes out as 134 hp instead of 134.1022.
How accurate is the kilowatts to horsepower converter?
Accuracy depends on your inputs and the method's assumptions. Decimal arithmetic uses 50 significant digits, but estimates, numerical methods and source data can be less precise; the displayed rounding does not remove those limits. It is checked against 3 worked examples whose answers come from independent sources; for example, “100 kW to hp” is checked against Exact-fraction computation from the legal unit definitions (scripts/gen-pairs.py, Python fractions).
Where does the method come from?
NIST SP 811 (2008), Guide for the Use of the International System of Units, Appendix B; NIST Handbook 44, Appendix C: General tables of units of measurement; BIPM, The International System of Units (SI Brochure), 9th edition.
About this calculator
Sources
Checked against references
3 worked examples with independently sourced answers ship with this calculator. They run in the test suite; you can run them here too.
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