Convert Kilowatts to Horsepower
1 kilowatt is 1.341022 hp. One kilowatt is exactly 1.3410220896 horsepower.
One kilowatt is 1.3410221 horsepower. To convert kilowatts to horsepower, multiply by 1.3410221; to go the other way, divide by 1.3410221 or multiply by 0.74569987. The factor is exact rather than rounded: it follows from NIST Special Publication 811. A thousand watts.
Factor checked against the defining standard · How we check
- Kilowatts × 1.3410221
value * 1.34102208961.341 hp
1 kilowatt in every power unit
| Unit | Value | Exact factor |
|---|---|---|
| horsepower | 1.34102209 hp | × 1.3410220896 |
| metric horsepower | 1.359621617 PS | × 1.3596216173 |
| watts | 1,000 W | × 1,000 |
| kilowatts (as entered) | 1 kW | — |
| megawatts | 0.001 MW | × 0.001 |
| BTU per hour | 3,412.141633 BTU/h | × 3,412.14163313 |
Factors are entered by hand from NIST Special Publication 811 rather than derived from a units library, so the ones that terminate are exact rather than rounded.
How do you convert kilowatts to horsepower?
- 1.Take the measurement in kilowatts.
- 2.Multiply by 1.3410221 — that is how many horsepower fit in one kilowatt.
- 3.To go back the other way, divide by 1.3410221, or multiply by 0.74569987.
Worked example: 25 kilowatts to horsepower
- Formula
- kW × 1.3410221 = hp
- Arithmetic
- 25 × 1.3410221 = 33.525552 hp
- Answer
- 25 kW = 33.525552 hp
The factor is rounded for display; the figure above is computed from the full value.
Kilowatts to horsepower conversion table
| Kilowatts | Horsepower |
|---|---|
| 1 kW | 1.341022 hp |
| 2 kW | 2.682044 hp |
| 3 kW | 4.023066 hp |
| 4 kW | 5.364088 hp |
| 5 kW | 6.70511 hp |
| 6 kW | 8.046133 hp |
| 7 kW | 9.387155 hp |
| 8 kW | 10.728177 hp |
| 9 kW | 12.069199 hp |
| 10 kW | 13.410221 hp |
| 12 kW | 16.092265 hp |
| 15 kW | 20.115331 hp |
| 20 kW | 26.820442 hp |
| 25 kW | 33.525552 hp |
| 50 kW | 67.051104 hp |
| 100 kW | 134.102209 hp |
| 200 kW | 268.204418 hp |
| 300 kW | 402.306627 hp |
| 500 kW | 670.511045 hp |
| 1000 kW | 1,341.02209 hp |
| 2000 kW | 2,682.044179 hp |
| 5000 kW | 6,705.110448 hp |
| 10000 kW | 13,410.220896 hp |
What is a kilowatt?
A thousand watts. Electric motors, kettles and EV chargers are rated here, and a kilowatt is close to 1.34 horsepower.
What is a horsepower?
Mechanical horsepower: exactly 550 foot-pounds of work every second, the figure James Watt settled on to sell engines against pit ponies. US vehicle and motor ratings use it.
How many horsepower are in a kilowatt?
One kilowatt is 1.3410221 horsepower. Going the other way, one horsepower is 0.74569987 kilowatts. Both figures come from the same defined relation rather than from a measurement, which is why they are the same today as they were in 1959.
Every power unit here
| Unit | Symbol | One of these is |
|---|---|---|
| Horsepower | hp | 745.69987 watt |
| Metric horsepower | PS | 735.49875 watt |
| Watts | W | the base unit |
| Kilowatts | kW | 1000 watt |
| Megawatts | MW | 1000000 watt |
| BTU per hour | BTU/h | 0.29307107 watt |
Source: NIST Special Publication 811 — mechanical horsepower is 550 ft·lbf/s exactly
Questions people actually ask
- How many horsepower are in a kilowatt?
- 1.3410221. Mechanical horsepower: exactly 550 foot-pounds of work every second, the figure James Watt settled on to sell engines against pit ponies. US vehicle and motor ratings use it.
- How do I convert horsepower back to kilowatts?
- Divide by 1.3410221, or multiply by 0.74569987 — they are the same operation.
Other power conversions
Horsepower to kilowatts — the same conversion the other way.