Convert Horsepower (mech) (hp) to Kilowatt (kW) instantly. Enter any value and get the result immediately.
hp → kW Converter
| Horsepower (mech) (hp) | Kilowatt (kW) |
|---|---|
| 0.1 hp | 0.07457 kW |
| 0.5 hp | 0.37285 kW |
| 1 hp | 0.7457 kW |
| 2 hp | 1.4914 kW |
| 5 hp | 3.7285 kW |
| 10 hp | 7.457 kW |
| 20 hp | 14.914 kW |
| 50 hp | 37.285 kW |
| 100 hp | 74.57 kW |
| 200 hp | 149.14 kW |
| 500 hp | 372.85 kW |
| 1000 hp | 745.7 kW |
| 5000 hp | 3728.5 kW |
| 10000 hp | 7457 kW |
The formula to convert mechanical Horsepower (hp) to Kilowatt (kW) is:
Reverse formula — kW to hp:
Step-by-step example — Convert 100 hp to kW:
Common examples:
Mechanical horsepower (hp) is an imperial unit of power defined by Scottish engineer James Watt in the 18th century. He measured that a horse could do 33,000 foot-pounds of work per minute — and called this 1 horsepower. One mechanical horsepower equals 745.7 watts or 0.7457 kW.
Horsepower is the standard for rating car engines, motorcycles, pumps, and industrial motors in the US and UK. In India, vehicle brochures commonly show engine power in both hp and kW.
A kilowatt (kW) equals 1,000 watts and is the metric standard for power measurement worldwide. It is used for electrical appliances, solar panels, EV motors, and industrial machinery. In Europe and increasingly in India, car power ratings are given in kW alongside hp. Electric vehicles (EVs) are always rated in kW — never in horsepower traditionally.
| Car Model | Horsepower (hp) | Kilowatt (kW) |
|---|---|---|
| Maruti Alto K10 | 67 hp | 49.96 kW |
| Hyundai i20 | 83 hp | 61.89 kW |
| Honda City (petrol) | 121 hp | 90.23 kW |
| Tata Nexon EV | 143 hp | 106.64 kW |
| Hyundai Creta | 157 hp | 117.07 kW |
| BMW 3 Series | 255 hp | 190.16 kW |
| Porsche 911 | 443 hp | 330.35 kW |
| Bugatti Chiron | 1,479 hp | 1,102.91 kW |
| Feature | Horsepower (hp) | Kilowatt (kW) |
|---|---|---|
| System | Imperial | Metric (SI) |
| Equals in Watts | 745.7 W | 1,000 W |
| 1 unit in other | 0.7457 kW | 1.341 hp |
| Used for | Engines, motors | All power globally |
| Common in | USA, UK, India (cars) | Europe, EVs, worldwide |
| EV ratings | Rarely used | Always used |
Electric vehicles are always rated in kW for motor output and kWh for battery capacity. Here are some popular EVs with their power in both units:
| EV Model | Power (kW) | Power (hp) |
|---|---|---|
| Tata Nexon EV | 106 kW | 142 hp |
| MG ZS EV | 130 kW | 174 hp |
| Tesla Model 3 | 239 kW | 320 hp |
| Tesla Model S Plaid | 750 kW | 1,006 hp |
| Rimac Nevera | 1,287 kW | 1,725 hp |
Multiply hp by 0.7457. Formula: kW = hp × 0.7457. Example: 200 hp × 0.7457 = 149.14 kW.
1 mechanical horsepower = 0.7457 kW = 745.7 watts. This is the standard conversion used globally for vehicle and motor power ratings.
150 hp = 111.86 kW. Formula: 150 × 0.7457 = 111.86 kW. This is a typical mid-size sedan engine power rating.
3 kW = 4.02 hp. Formula: kW ÷ 0.7457 = hp → 3 ÷ 0.7457 = 4.02 hp. This is a common query for small motor and pump sizing.
1 kW is bigger than 1 hp. 1 kW = 1.341 hp and 1 hp = 0.7457 kW. So a 100 kW motor is more powerful than a 100 hp engine.
Different countries use different standards. The US and UK prefer hp while Europe, Australia, and India increasingly use kW. Both measure the same engine power — just in different units. Electric vehicles always use kW.