Direct conversion
Convert watt [W] to horsepower (metric) [PS] instantly with formula, examples, chart, and FAQs.
Quick answer
Use the calculator below for any custom value, then check the formula, examples, chart, and reverse conversion links.
1 watt [W] = 0.00136 horsepower (metric) [PS]
1 watt [W] = 0.00136 horsepower (metric) [PS]
Example: 1 watt [W] equals 0.00136 horsepower (metric) [PS].
Power conversions use watt as the reference unit and include mechanical horsepower, electrical power, and heat-rate units.
Displayed results are rounded for readability. The calculator keeps enough precision for everyday use and switches to scientific notation for very large or very small values. Last reviewed: 2026-05-21.
The watt is the SI derived unit of power equal to one joule per second.
HistoryThe watt is named after James Watt and became the standard unit for power output and consumption.
Current useWatts are used for appliances, electronics, lighting, motors, solar panels, and power ratings.
The horsepower (metric) (PS) is a power unit used to express measurements in this converter.
HistoryThis unit is included because it appears in practical measurement systems, technical references, product specifications, or everyday conversion needs.
Current useUse horsepower (metric) when comparing power values, checking specifications, converting between systems, or preparing quick estimates.
| watt [W] | horsepower (metric) [PS] |
|---|---|
| 1 | 0.00136 |
| 2 | 0.002719 |
| 5 | 0.006798 |
| 10 | 0.013596 |
| 20 | 0.027192 |
| 25 | 0.033991 |
| 50 | 0.067981 |
| 100 | 0.135962 |
| 1000 | 1.359622 |
Use this formula: 1 watt [W] = 0.00136 horsepower (metric) [PS] Enter your value in the calculator and the result updates instantly.
1 watt [W] equals 0.00136 horsepower (metric) [PS].
Yes. Use the swap button in the calculator or open the related reverse conversion link when it is listed on this page.