Power and Energy
WtoPS
Convert watts (W) to metric horsepower (PS).
Factor1 W = 0.001359622 PS
Converter
W
Accepts numbers or expressions, e.g. 150 + 14.7
Result
PS
Rendered to 6 significant figures.
Formula
Formula
PS = W × 0.001359622
Multiply any value in watts by 0.001359622 to obtain the value in metric horsepower.
Worked example
Convert 1000 W to PS.
- 01Start with 1000 W.
- 02Multiply by the conversion factor: 1000 × 0.001359622 = 1.35962 PS.
Result1000 W = 1.35962 PS
Conversion table
| W | PS |
|---|---|
| 1 | 0.0013596 |
| 2 | 0.0027192 |
| 5 | 0.0067981 |
| 10 | 0.013596 |
| 20 | 0.027192 |
| 50 | 0.067981 |
| 100 | 0.13596 |
| 200 | 0.27192 |
| 500 | 0.67981 |
| 1000 | 1.3596 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from W to PS?
1 W equals 0.001359622 PS. To convert, multiply the value in watts by 0.001359622.
How do I convert 1 W to PS?
1 W = 0.00135962 PS. For any value, multiply by 0.001359622.
How do I convert PS back to W?
Divide by the same factor — or equivalently, multiply by 735.4988. So 1 PS = 735.499 W.
When would I need to convert watt to metric horsepower?
Power conversions are common when comparing motor ratings (often kW or hp), thermal duty (BTU/hr or kW), and utility consumption in mixed-unit projects.
Is the conversion exact?
The factor shown is precise to at least 7 significant figures. For most process-engineering work this is far better than instrument accuracy. For metrology or trade applications, refer to the relevant national standard (NIST, BIPM, ISO 80000).