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Power converter

watt to metric horsepower

Convert watt (W) to metric horsepower (PS). Use an editable power converter, conversion formula, and reference table.

0.001359621617

1 W = 0.001359621617 PS

Calculated in your browser

Conversion formula

PS = W × 0.001359621617

One watt equals 0.001359621617 metric horsepower. Multiply your value in watt by this factor to get metric horsepower. For the reverse conversion, divide by the same factor.

Worked example

To convert 5 watt:
5 × 0.001359621617 = 0.006798108087 PS

Conversion table

watt (W)metric horsepower (PS)
0.010.00001359621617
0.10.0001359621617
10.001359621617
20.002719243235
50.006798108087
100.01359621617
250.03399054043
500.06798108087
1000.1359621617
10001.359621617

About these measurements

Power is the rate of energy transfer.

The base reference used here is the watt. One watt is 1 base units; one metric horsepower is 735.49875 base units.

Important distinctions

Mechanical horsepower and metric horsepower are distinct units.

Precision

The converter uses stored conversion factors and floating-point arithmetic. Results display up to ten significant digits, switching to scientific notation for very small or large values. Keep the precision of your original measurement when reporting results.

Common questions

How do I convert W to PS?

Multiply the quantity in W by 0.001359621617. You can also type the value into the converter above.

Can I reverse the conversion?

Yes. Use the swap button or open the metric horsepower to watt converter.

Reference

NIST Guide to the SI — conversion factors and prefix conventions. SI prefixes scale units by powers of ten; the dimension-specific notes above describe the assumptions used on this page.

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