Why Convert Kilowatts to Horsepower?
Converting between kilowatts (kW) and horsepower (hp) is one of the most common power conversions. Whether for engineering, cooking, travel, or science, knowing how to quickly convert kW to hp saves time and prevents errors.
Power conversions between kW and hp are essential for automotive, electrical, and HVAC applications. Car specifications in Europe and China list engine power in kilowatts (kW), while the US and Japan prefer horsepower (hp). Home appliance energy labels show wattage for comparing electricity consumption. When sizing generators, air conditioners, or solar panels, accurate power conversion ensures you select the right equipment for your needs.
How to Convert Kilowatts to Horsepower
To convert kilowatts to horsepower, use the following formula:
hp = kW × 1.34102209
Example: 1 kW = 1.34102209 hp
For example, 5 kW = 6.705110448 hp, 10 kW = 13.4102209 hp, and 100 kW = 134.102209 hp. Our calculator above performs this conversion instantly with full precision — no rounding errors.
Common Use Cases
- A typical family sedan (e.g. Toyota Corolla): 112 kW = 150.194474 hp
- Tesla Model 3 Standard Range Plus: 211 kW = 282.9556609 hp
- A household microwave oven: 1 kW = 1.34102209 hp
- A split-type air conditioner (1.5 kW): 1.5 kW = 2.011533134 hp
- Formula 1 race car engine: 750 kW = 1005.766567 hp
Common Mistakes to Avoid
- Horsepower variants: Mechanical horsepower (550 ft·lbf/s) ≈ 745.7 W, while metric horsepower (PS) ≈ 735.5 W. This converter uses mechanical hp.
- Peak vs continuous power: Motor specifications may list peak or continuous power. A "2000W peak" motor might only sustain 1200W continuously.
- Electrical vs mechanical: Electrical power (watts) and mechanical output (horsepower) differ by motor efficiency (typically 80-95%).
Pro Tips
- Memorize the factor: 1 kW = 1.34102209 hp. For quick mental math, remember this base conversion.
- Quick reference: 5 kW = 6.705110448 hp · 10 kW = 13.4102209 hp · 25 kW = 33.52555224 hp · 50 kW = 67.05110448 hp · 100 kW = 134.102209 hp
- Bookmark this page: Save this converter for instant access. It works offline once loaded — no internet needed.
Kilowatts to Horsepower Conversion Table
| kW | hp |
|---|---|
| 0.01 kW | 0.0134102209 hp |
| 0.1 kW | 0.134102209 hp |
| 0.5 kW | 0.6705110448 hp |
| 1 kW | 1.34102209 hp |
| 2 kW | 2.682044179 hp |
| 5 kW | 6.705110448 hp |
| 10 kW | 13.4102209 hp |
| 20 kW | 26.82044179 hp |
| 50 kW | 67.05110448 hp |
| 100 kW | 134.102209 hp |
| 500 kW | 670.5110448 hp |
| 1000 kW | 1341.02209 hp |
All values in this table are mathematically exact per NIST SP 811.