Power

Watts to PS Converter

Convert watts (W) to metric horsepower (PS). 1 watt = 0.001359621617 metric horsepower (exact)

1 watt = 0.0013596216173 metric horsepower

How to convert watts to metric horsepower

FormulaPS = W × 0.001359621617

Multiply the value in watts by 0.001359621617. To go the other way, multiply by 735.49875 (or divide by 0.001359621617).

A watt is smaller than a metric horsepower: it takes 735.49875 watts to make one metric horsepower.

Worked examples

  • 1 watt1 W × 0.001359621617 = 0.001359621617 PS
  • 5 watts5 W × 0.001359621617 = 0.006798108087 PS
  • 10 watts10 W × 0.001359621617 = 0.01359621617 PS
  • 20 watts20 W × 0.001359621617 = 0.02719243235 PS
  • 100 watts100 W × 0.001359621617 = 0.1359621617 PS

Watts to metric horsepower conversion table

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

Watts to metric horsepower: 0.1–10 W
Watts (W)Metric horsepower (PS)
0.1 W0.00013596216 PS
0.25 W0.0003399054 PS
0.5 W0.00067981081 PS
1 W0.0013596216 PS
2 W0.0027192432 PS
3 W0.0040788649 PS
4 W0.0054384865 PS
5 W0.0067981081 PS
6 W0.0081577297 PS
7 W0.0095173513 PS
8 W0.010876973 PS
9 W0.012236595 PS
10 W0.013596216 PS
Watts to metric horsepower: 12–1,000 W
Watts (W)Metric horsepower (PS)
12 W0.016315459 PS
15 W0.020394324 PS
20 W0.027192432 PS
25 W0.03399054 PS
30 W0.040788649 PS
40 W0.054384865 PS
50 W0.067981081 PS
75 W0.10197162 PS
100 W0.13596216 PS
250 W0.3399054 PS
500 W0.67981081 PS
1,000 W1.3596216 PS

About the units

Watt (W)

The SI unit of power: one joule per second. An LED bulb draws around 10 W, a microwave about 1,000 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 watt?

There are 0.001359621617 metric horsepower in one watt, and this value is exact by definition.

How do I convert watts to metric horsepower?

Multiply the number of watts by 0.001359621617. For example, 10 W × 0.001359621617 = 0.01359621617 PS.

How many watts are in one metric horsepower?

One metric horsepower equals 735.49875 watts. That is the reverse factor, 1 ÷ 0.001359621617.

What is 10 watts in metric horsepower?

10 W = 0.01359621617 PS.

Is this W 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.

Convert watts to other units

Convert other units to metric horsepower

Try “psi to bar”, “cups”, “binary” or “5 ft in cm”.