Convert 4 Horsepower (Mech) (hp) to Kilowatt (kW).

4 Horsepower (Mech) equals 2.982799 Kilowatt. Multiply 4 by 0.7456998716.

4 Horsepower (Mech) to Kilowatt

Power Converter

22 units available

Decimals:

From

To

2.982799

4 hp = 2.982799 kW

Formula:

kW = hp × 0.7456998716

With your value: 4 hp = 2.98279949 kW

How big is that?

Everyday references on a logarithmic scale, all expressed in horsepower (mech) so you can sanity-check the result.

LED bulb (1/3.3e+2 your value)0.0121 hp

Laptop (1/46 your value)0.0872 hp

Microwave oven (1/3.0 your value)1.34 hp

Your value4.00 hp

Electric kettle (1.0× your value)4.02 hp

Family car engine (30× your value)121 hp

Other Horsepower (Mech) to Kilowatt conversions

1 hp to kW 2 hp to kW 3 hp to kW 5 hp to kW 6 hp to kW 7 hp to kW 8 hp to kW Full Horsepower (Mech) to Kilowatt converter

Horsepower (Mech) to Kilowatt Conversion Table

Horsepower (Mech) (hp)	Kilowatt (kW)
0.5	0.37285
1	0.7457
2	1.4914
5	3.728499
10	7.456999
15	11.185498
20	14.913997
25	18.642497
50	37.284994
100	74.569987
250	186.424968
500	372.849936
1000	745.699872

Kilowatt to Horsepower (Mech) Conversion Table

Kilowatt (kW)	Horsepower (Mech) (hp)
0.5	0.670511
1	1.341022
2	2.682044
5	6.70511
10	13.410221
15	20.115331
20	26.820442
25	33.525552
50	67.051104
100	134.102209
250	335.255522
500	670.511045
1000	1,341.02209

Where these values come from

Every factor on this page is traced to the document that defines it. See the full provenance dataset or our methodology.

Horsepower (Mech) (hp)

Power

Exact conversion

Mechanical horsepower is exactly 550 ft·lbf/s = 745.699 871 582 270 22 W.

Metric horsepower (PS) is 735.498 75 W — about 1.4 % lower.

Source: NIST Special Publication 811, Guide for the Use of the International System of Units

National Institute of Standards and Technology (US) · Reviewed 2026-07-01

Kilowatt (kW)

Power

Exact conversion

Derived from the watt (1 W = 1 J/s).

Source: NIST Special Publication 811, Guide for the Use of the International System of Units

National Institute of Standards and Technology (US) · Reviewed 2026-07-01

How to Convert Horsepower (Mech) to Kilowatt

To convert from Horsepower (Mech) (hp) to Kilowatt (kW), multiply the value by 0.7456998716.

Formula: kW = hp × 0.7456998716

Reverse: hp = kW × 1.3410220896

Step-by-Step Example

Start with your value in Horsepower (Mech). For example: 5 hp
Multiply by the conversion factor: 5 x 0.7456998716
The result is: 3.728499 kW

About Horsepower (Mech)

The horsepower (mech) (hp) is a unit of power. One horsepower (mech) equals 745.6998716 watts. UnitConvertLab converts it against every other power unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.

Common uses: power calculations, engineering and science, education.

About Kilowatt

The kilowatt (kW) is a unit of power. One kilowatt equals 1000 watts. UnitConvertLab converts it against every other power unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.

Common uses: power calculations, engineering and science, education.

Frequently Asked Questions

What is 4 Horsepower (Mech) in Kilowatt?

4 Horsepower (Mech) equals 2.982799 Kilowatt.

How many Kilowatt are in 1 Horsepower (Mech)?

There are exactly 0.7456998716 Kilowatt in 1 Horsepower (Mech). This means the conversion factor from Horsepower (Mech) to Kilowatt is 0.7456998716.

What is the formula to convert Horsepower (Mech) to Kilowatt?

The formula to convert Horsepower (Mech) to Kilowatt is: kW = hp × 0.7456998716. For example, to convert 10 Horsepower (Mech) to Kilowatt, you would multiply 10 by 0.7456998716.

What is a Horsepower (Mech)?