Power and Energy
PStoW
Convert metric horsepower (PS) to watts (W).
Factor1 PS = 735.4987 W
Converter
PS
Accepts numbers or expressions, e.g. 150 + 14.7
Result
W
Rendered to 6 significant figures.
Formula
Formula
W = PS × 735.4987
Multiply any value in metric horsepower by 735.4987 to obtain the value in watts.
Worked example
Convert 1 PS to W.
- 01Start with 1 PS.
- 02Multiply by the conversion factor: 1 × 735.4987 = 735.499 W.
Result1 PS = 735.499 W
Conversion table
| PS | W |
|---|---|
| 1 | 735.5 |
| 2 | 1471 |
| 5 | 3677.5 |
| 10 | 7355 |
| 20 | 14710 |
| 50 | 36775 |
| 100 | 73550 |
| 200 | 1.4710e+5 |
| 500 | 3.6775e+5 |
| 1000 | 7.3550e+5 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from PS to W?
1 PS equals 735.4987 W. To convert, multiply the value in metric horsepower by 735.4987.
How do I convert 1 PS to W?
1 PS = 735.499 W. For any value, multiply by 735.4987.
How do I convert W back to PS?
Divide by the same factor — or equivalently, multiply by 0.001359622. So 1 W = 0.00135962 PS.
When would I need to convert metric horsepower to watt?
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).