Kilowatt (kW) to horsepower (hp) conversion calculator can be used to convert electrical power to mechanical power and vice versa but before that lets understand the each units
What is kilowatts (kW) and horsepower (hp)
kilowatt (kW) is the unit of power in electrical terms which is derived from electrical parameter based on some standard conversion methods, whereas horsepower (hp) is the unit of mechanical power which is derived from kw.
Kilowatt (kW)
A kilowatt (kw) is a unit of power in the International System of Units (SI). The base unit of the kilowatt is the watt. the prefix kilo means that a kilowatt equals one thousand watts or one thousand joules per second.
Horsepower (hp)
The unit horsepower (hp) is a unit of the rate at which work is done. Mechanical horsepower, also known as imperial horsepower (hp) is equall to 0.7457 kilowatts (kW) (550 ft·lbf/s), while metric horsepower is approximately 735.5 watts (75 kgf·m/s).
Use of Horsepower (hp) Unit
This is a big question that often comes in the mind of an electrical engineers with low experience that why do we need horsepower (hp) and why not only kilowatt (kW) could be used. The answer to this question is that Motors serve the mechanical load and mechanics is not electrical but rather horses.
In olden days we used horses to drive the load such as Weights, so in the modern world we don’t use the horses but Motors to drive the load and therefore our mind compares this with horses and we used to say that this motor is equivalent to how much horses and hence the concept of Horsepower (hp) originated.
kilowatts (kW) to horsepower (hp) Calculator
So now we know that our motor is nothing but a horse so to design that motor we need some relation between kW and hp, that helps in conversion from horsepower to kilowatt.
Here’s how the relation exist between the two units 1 kW = 1.341 HP and 1hp = 746 watt
mechanical horsepower is equal to 0.7457 kilowatts, the formula to find mechanical horsepower is the power in kilowatts divided by 0.7457.
For example 10 kW = (10 ÷ 0.746) = 13.404811 hp.
How to convert kilowatts (kW) to horsepower(hp)
1 hp = 745.699872 W
So the power conversion of kilowatts to horsepower is given by:
Kilowatts to electrical horsepower
One electrical horsepower is equal to 0.746 kilowatts:
1 hp(E) = 746 W = 0.746 kW
So the power conversion of kilowatts to horsepower is given by:
Kilowatts to horsepower
One metric horsepower is equal to 0.73549875 kilowatts:
1 hp(M) = 735.49875 W
Kilowatts (kW) to horsepower (hp) conversion table
| Kilowatt (kW) | horsepower (hp) |
| 0.75 | 0.5595 |
| 1 | 0.746 |
| 1.1 | 0.8206 |
| 1.5 | 1.119 |
| 2.2 | 1.6412 |
| 3.7 | 2.7602 |
| 4 | 2.984 |
| 5 | 3.73 |
| 5.5 | 4.103 |
| 10 | 7.46 |
| 25 | 18.65 |
| 30 | 22.38 |
| 32.5 | 24.245 |
| 45 | 33.57 |
| 60 | 44.76 |
| 75 | 55.95 |