Horsepower (Mech) to Horsepower (Metric) Converter

Power Converter

22 units available

Decimals:

From

To

1.01387

1 hp = 1.01387 PS

Formula:

PS = hp × 1.0138696654

With your value: 1 hp = 1.01386967 PS

How big is that?

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

LED bulb (1/83 your value)0.0121 hp

Laptop (1/11 your value)0.0872 hp

Your value1.00 hp

Microwave oven (1.3× your value)1.34 hp

Electric kettle (4.0× your value)4.02 hp

Family car engine (1.2e+2× your value)121 hp

Other Horsepower (Mech) to Horsepower (Metric) conversions

2 hp to PS 3 hp to PS 4 hp to PS 5 hp to PS 6 hp to PS 7 hp to PS 8 hp to PS

Horsepower (Mech) to Horsepower (Metric) Conversion Table

Horsepower (Mech) (hp)	Horsepower (Metric) (PS)
0.5	0.506935
1	1.01387
2	2.027739
5	5.069348
10	10.138697
15	15.208045
20	20.277393
25	25.346742
50	50.693483
100	101.386967
250	253.467416
500	506.934833
1000	1,013.869665

Horsepower (Metric) to Horsepower (Mech) Conversion Table

Horsepower (Metric) (PS)	Horsepower (Mech) (hp)
0.5	0.49316
1	0.98632
2	1.97264
5	4.9316
10	9.863201
15	14.794801
20	19.726401
25	24.658002
50	49.316004
100	98.632007
250	246.580018
500	493.160035
1000	986.320071

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

Horsepower (Metric) (PS)

Power

Exact conversion

Metric horsepower (PS) is exactly 75 kgf·m/s = 735.498 75 W.

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 Horsepower (Metric)

To convert from Horsepower (Mech) (hp) to Horsepower (Metric) (PS), multiply the value by 1.0138696654.

Formula: PS = hp × 1.0138696654

Reverse: hp = PS × 0.9863200706

Step-by-Step Example

Start with your value in Horsepower (Mech). For example: 5 hp
Multiply by the conversion factor: 5 x 1.0138696654
The result is: 5.069348 PS

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 Horsepower (Metric)

The horsepower (metric) (PS) is a unit of power. One horsepower (metric) equals 735.49875 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

How many Horsepower (Metric) are in 1 Horsepower (Mech)?

There are exactly 1.0138696654 Horsepower (Metric) in 1 Horsepower (Mech). This means the conversion factor from Horsepower (Mech) to Horsepower (Metric) is 1.0138696654.

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

The formula to convert Horsepower (Mech) to Horsepower (Metric) is: PS = hp × 1.0138696654. For example, to convert 10 Horsepower (Mech) to Horsepower (Metric), you would multiply 10 by 1.0138696654.

What is a Horsepower (Mech)?