Kilowatts to horsepower
Multiply kilowatts by 1.341 to get horsepower.
100 kW = 134.1022 hp
How to convert kilowatts to horsepower
The horsepower is mechanical (imperial) horsepower, about 745.70 watts. The kilowatt is one thousand watts — the metric unit for engine and appliance power.
Worked example — 100 kW: 100 × 1.341 = 134.1022 hp.
Kilowatts to horsepower table
| Kilowatts | Horsepower |
|---|---|
| 1 kW | 1.341 hp |
| 10 kW | 13.4102 hp |
| 50 kW | 67.0511 hp |
| 75 kW | 100.5767 hp |
| 100 kW | 134.1022 hp |
| 150 kW | 201.1533 hp |
| 200 kW | 268.2044 hp |
| 300 kW | 402.3066 hp |
| 500 kW | 670.511 hp |
Reverse and related
About kilowatts and horsepower
Kilowatt (kW)
1 kW = 1.341 hpDefinition. One thousand watts — the metric unit for engine and appliance power
History and origin
The kilowatt is one thousand watts, a metric multiple of the SI power unit. It gives practical numbers for engines and appliances.
Current use
Kilowatts rate car engines outside the United States, large appliances and electric-vehicle charging.
Source: NIST SP 811, App. B (power). Mechanical hp = 550 ft·lbf/s ≈ 745.70 W; metric hp (PS) = 75 kgf·m/s = 735.49875 W
Horsepower (hp)
1 hp = 0.7457 kWDefinition. Mechanical (imperial) horsepower, about 745.70 watts
History and origin
Horsepower was coined by James Watt in the 1780s to compare his steam engines to the draught horses they replaced, based on the work a horse could do. Mechanical horsepower is about 745.7 watts.
Current use
Horsepower rates car and engine power in the United States and United Kingdom.
Source: NIST SP 811, App. B (power). Mechanical hp = 550 ft·lbf/s ≈ 745.70 W; metric hp (PS) = 75 kgf·m/s = 735.49875 W
Where people use this
Kilowatts: car engines outside the US, appliances, EV charging. Horsepower: car and engine power in the US/UK. A 150 kW engine is about 201 hp.
Every value is carried to full double precision; the display is rounded.
Both units are defined in NIST SP 811, App. B (power). Mechanical hp = 550 ft·lbf/s ≈ 745.70 W; metric hp (PS) = 75 kgf·m/s = 735.49875 W.
Questions people ask
How many hp is 1 kW?
One kilowatt is about 1.34 hp. To convert kW to horsepower, multiply by 1.341.
How many hp is 150 kW?
A 150 kW engine is about 201 hp, and 100 kW is about 134 hp.
How do you convert kW to hp?
Multiply the kilowatts by 1.341, so a 75 kW motor is about 101 hp.
How many hp is 200 kW?
200 kW is about 268 hp.