Horsepower to kW Calculator
Convert horsepower (HP) to kilowatts (kW).
Horsepower to Kilowatt (HP to KW)
Knowing how horsepower connects to kilowatts is super helpful for stuff like cars and factory machines.
What is Horsepower (HP)?
Horsepower is a unit of power that measures the rate at which work is done. It originated from the power output of horses.
- Imperial/Mechanical HP = 745.7 watts (commonly used in US/UK)
- Electrical HP = 746 watts (used in electrical systems)
- Metric HP = 735.5 watts (used in many European countries)
What is a Kilowatt (KW)?
A kilowatt is a unit of power equal to 1,000 watts. It is commonly used to measure electrical power.
- 1 KW = 1000 watts
- 1 KW = 1000 joules per second
- It’s the standard unit for measuring electrical power
Three Methods Of Converting Horsepower to Kilowatts
1. Imperial/Mechanical HP to KW
The Magic Formula:
P(kW) = 0.7457 × P(hp)
Example
Converting 10 horsepower to kilowatts:
P(kW) = 0.7457 × 10 hp = 7.457 kW
Your 10 hp engine is equivalent to 7.457 kilowatts!
2. Electrical HP to KW
The Simple Formula:
P(kW) = 0.746 × P(hp)
Example
For a 10 hp electrical motor:
P(kW) = 0.746 × 10 hp = 7.46 kW
Your electrical motor uses 7.46 kilowatts!
3. Metric HP to KW
European Standard Formula:
P(kW) = 0.7355 × P(hp)
Let’s Calculate
For a 10 hp European machine:
P(kW) = 0.7355 × 10 hp = 7.355 kW
That’s 7.355 kilowatts in the metric system!
Electrical Horsepower to Kilowatt Conversion Table
This table provides the conversion from electrical horsepower to kilowatts (kW).
| Electrical Horsepower (hp) | Kilowatts (kW) |
|---|---|
| 1 hp | 0.7460 kW |
| 0.1 hp | 0.07460 kW |
| 0.5 hp | 0.3730 kW |
| 2 hp | 1.4920 kW |
| 5 hp | 3.7300 kW |
| 10 hp | 7.4600 kW |
| 15 hp | 11.1900 kW |
| 20 hp | 14.9200 kW |
| 25 hp | 18.6500 kW |
| 30 hp | 22.3800 kW |
| 40 hp | 29.9200 kW |
| 50 hp | 37.3000 kW |
| 75 hp | 55.2300 kW |
| 100 hp | 74.6000 kW |
Imperial/Mechanical Horsepower to Kilowatt Conversion Table
This table provides the conversion from imperial/mechanical horsepower to kilowatts (kW).
| Imperial/Mechanical Horsepower (hp) | Kilowatts (kW) |
|---|---|
| 1 hp | 0.7457 kW |
| 0.1 hp | 0.07457 kW |
| 0.5 hp | 0.373 kW |
| 2 hp | 1.491 kW |
| 5 hp | 3.735 kW |
| 10 hp | 7.460 kW |
| 15 hp | 11.185 kW |
| 20 hp | 14.913 kW |
| 25 hp | 18.641 kW |
| 30 hp | 22.368 kW |
| 40 hp | 29.832 kW |
| 50 hp | 37.296 kW |
| 75 hp | 55.215 kW |
| 100 hp | 74.576 kW |
