Horsepower to Kilowatts Conversion Calculator

Horsepower to Kilowatts Calculator

Select hp unit type: Mechanical horsepower Electrical horsepower Metric horsepower Enter horsepower:

Kilowatts: kW

A Horsepower (HP) to Kilowatts (kW) calculator is essential for converting power measurements between mechanical (HP) and metric (kW) systems. This conversion is widely used in automotive, engineering, industrial machinery, and electrical applications.

Key Definitions

• Horsepower (HP) – A unit of power measuring the rate of work (1 HP ≈ 745.7 W).
• Kilowatt (kW) – A metric unit of power (1 kW = 1000 W).

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Conversion Formulas

1. HP to kW (Mechanical Horsepower)

$$P(kW)=P(HP)\times 0.7457$$

Example:

• Convert 10 HP to kW:

$$10\times 0.7457=7.457\text{ kW}$$

2. kW to HP

$$P(HP)=P(kW)\times 1.34102$$

Example:

• Convert 5 kW to HP:

$$5\times 1.34102\approx 6.705\text{ HP}$$

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Conversion Table (HP ⇆ kW)

Horsepower (HP)	Kilowatts (kW)
1 HP	0.7457 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

Types of Horsepower

1. Mechanical Horsepower (HP) – Standard for engines, motors (1 HP = 745.7 W).

2. Metric Horsepower (PS, CV) – Used in Europe (1 PS ≈ 735.5 W).

3. Electrical Horsepower – Used for electric motors (1 EHP = 746 W).

Metric HP (PS) to kW Conversion

$$P(kW)=P(PS)\times 0.7355$$

Comparison of Power Units

Unit	Equivalent in kW
1 HP (Mechanical)	0.7457 kW
1 HP (Metric/PS)	0.7355 kW
1 HP (Electric)	0.746 kW
1 kW	1.341 HP