Convert Horsepower (HP) to Kilowatts (kW)

1 HP = 0.746 kW

How many Kilowatts in a Horsepower?Printable chart →

Understanding the conversion between horsepower (HP) and kilowatts (kW) is essential for various applications, especially in engineering and automotive contexts. With the formula of 1 HP equating to 0.7457 kW, you can easily convert power measurements to suit your needs.

Horsepower (HP)

Kilowatt (kW)

0.7457

≈ 3/4 kW

Conversion Formula

kW = HP × 0.7457

Reverse: HP = kW × 1.34102

Quick mental math: To quickly estimate kW from HP, divide the horsepower by 1.34.

Conversion Examples

1 HP × 0.7457 =

0.746 kW

1 Horsepower = 0.746 Kilowatts

5 HP × 0.7457 =

3.729 kW

5 Horsepower = 3.729 Kilowatts

10 HP × 0.7457 =

7.457 kW

10 Horsepower = 7.457 Kilowatts

25 HP × 0.7457 =

18.643 kW

25 Horsepower = 18.643 Kilowatts

50 HP × 0.7457 =

37.285 kW

50 Horsepower = 37.285 Kilowatts

100 HP × 0.7457 =

74.57 kW

100 Horsepower = 74.57 Kilowatts

Horsepower to Kilowatt Table

Quick convert your value:

HP =—kW

Start:Step:Rows:Precision:

Horsepower (HP)	Kilowatt (kW)	Fraction
1	0.7457	3/4
6	4.4742	4 15/32
11	8.2027	8 13/64
16	11.9312	11 15/16
21	15.6597	15 21/32
26	19.3882	19 25/64
31	23.1167	23 7/64
36	26.8452	26 27/32
41	30.5737	30 37/64
46	34.3022	34 19/64
51	38.0307	38 1/32
56	41.7592	41 49/64
61	45.4877	45 31/64
66	49.2162	49 7/32
71	52.9447	52 15/16
76	56.6732	56 43/64
81	60.4017	60 13/32
86	64.1302	64 1/8
91	67.8587	67 55/64
96	71.5872	71 19/32

Unit Definitions

What is a Horsepower (HP)?

ImperialUnited States, United Kingdom

Horsepower (HP) is a unit of power that is commonly used to measure the output of engines and motors.

History

The term horsepower was coined by engineer James Watt in the late 18th century to compare the power of steam engines to draft horses. It became a standard measure of engine power and is still widely used today.

Current Use

Today, horsepower is often used in the automotive industry, as well as in various mechanical applications to indicate the power of engines and motors.

Learn more about Horsepower

What is a Kilowatt (kW)?

Metric (SI)Worldwide

Kilowatt (kW) is a unit of power equal to one thousand watts, commonly used to measure electrical power.

History

The kilowatt was introduced as a metric unit of power in the late 19th century, reflecting advancements in electrical engineering and the growing use of electricity for power generation and consumption.

Current Use

Kilowatts are widely used in the energy sector to describe power output from electrical sources, making it easier for consumers to understand energy consumption in terms of cost and efficiency.

Learn more about Kilowatt

Frequently Asked Questions

How do I convert 50 HP to kW?

To convert 50 HP to kW, multiply 50 by the conversion factor of 0.7457. This results in 50 HP being approximately 37.285 kW. This conversion is significant in industries such as automotive and machinery, where understanding power output in kilowatts can directly impact performance metrics.

What is the kW equivalent of a 200 HP engine?

For a 200 HP engine, you would perform the calculation 200 HP multiplied by 0.7457, which gives you around 149.14 kW. This is particularly useful when comparing engines, as many electric motors are rated in kilowatts, allowing for better compatibility assessments.

How many kW does a 100 HP motor produce?

A 100 HP motor can be converted to kilowatts by using the formula: 100 HP times 0.7457 equals 74.57 kW. This conversion is critical when sizing electrical systems, ensuring that the power requirements of the motor are met without overloading power sources.

Why is it important to convert HP to kW in construction?

In construction, knowing the power consumption of equipment is vital for planning and budgeting. For instance, if a generator is rated at 150 HP, converting that to kW gives you approximately 111.85 kW. This helps in determining fuel needs and operational costs.

Can you give an example of converting HP to kW in fitness equipment?

Absolutely! If you have a treadmill that operates at 3 HP, converting this to kilowatts requires multiplying by 0.7457, resulting in about 2.24 kW. Understanding this conversion can help in comparing the energy efficiency of different fitness machines.

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