HP to PS Converter

How to convert horsepower to metric horsepower

FormulaPS = hp × 1.013869665

Multiply the value in horsepower by 1.013869665. To go the other way, multiply by 0.9863200706 (or divide by 1.013869665).

A horsepower is larger than a metric horsepower: one horsepower contains 1.013869665 metric horsepower.

Worked examples

1 horsepower (mechanical)1 hp × 1.013869665 = 1.013869665 PS
5 horsepower5 hp × 1.013869665 = 5.069348327 PS
10 horsepower10 hp × 1.013869665 = 10.13869665 PS
20 horsepower20 hp × 1.013869665 = 20.27739331 PS
100 horsepower100 hp × 1.013869665 = 101.3869665 PS

Horsepower to metric horsepower conversion table

Values are calculated by the conversion engine and rounded to 8 significant figures.

Horsepower to metric horsepower: 0.1–10 hp
Horsepower (hp)	Metric horsepower (PS)
0.1 hp	0.10138697 PS
0.25 hp	0.25346742 PS
0.5 hp	0.50693483 PS
1 hp	1.0138697 PS
2 hp	2.0277393 PS
3 hp	3.041609 PS
4 hp	4.0554787 PS
5 hp	5.0693483 PS
6 hp	6.083218 PS
7 hp	7.0970877 PS
8 hp	8.1109573 PS
9 hp	9.124827 PS
10 hp	10.138697 PS

Horsepower to metric horsepower: 12–1,000 hp
Horsepower (hp)	Metric horsepower (PS)
12 hp	12.166436 PS
15 hp	15.208045 PS
20 hp	20.277393 PS
25 hp	25.346742 PS
30 hp	30.41609 PS
40 hp	40.554787 PS
50 hp	50.693483 PS
75 hp	76.040225 PS
100 hp	101.38697 PS
250 hp	253.46742 PS
500 hp	506.93483 PS
1,000 hp	1,013.8697 PS

About the units

Horsepower (hp)

550 foot-pounds per second, about 745.7 W. US car and motor ratings use mechanical horsepower. One horsepower equals 745.6998716 watts (W).

Metric horsepower (PS)

75 kgf⋅m/s, exactly 735.49875 W — about 1.4% less than mechanical horsepower. European car brochures often quote PS.

Frequently asked questions

How many metric horsepower are in one horsepower?

There are 1.013869665 metric horsepower in one horsepower, and this value is exact by definition.

How do I convert horsepower to metric horsepower?

Multiply the number of horsepower by 1.013869665. For example, 10 hp × 1.013869665 = 10.13869665 PS.

How many horsepower are in one metric horsepower?

One metric horsepower equals 0.9863200706 horsepower. That is the reverse factor, 1 ÷ 1.013869665.

What is 10 horsepower in metric horsepower?

10 hp = 10.13869665 PS.

Is this hp to PS converter accurate?

Yes. Both units are defined exactly in terms of SI units, so the conversion factor is exact; results are shown to 12 significant figures by default and you can change precision in the converter. Calculations run in your browser using the same tested engine that generated this page.