Convert Metric Horsepower to Watts
1 metric horsepower (PS) equals 735.49875 watts (W).
1 PS = 735.49875 W
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk metric horsepower to watt converter to paste a column from Excel.
How to Convert Metric Horsepower to Watt
- 1 PS = 735.49875 W
- 1 W = 0.001359621617 PS
- Example: convert 15 PS to W: 15 PS = 15 × 735.49875 W = 11032.48125 W
Formula
W = PS × 735.49875
Derivation from SI units:
- 1 PS = 75 kgf·m/s = 735.49875 W (exact)
- 1 W = 1 J/s = 1 kg·m²·s⁻³
Both units are defined exactly, so the factor is exact. Metric Horsepower definition: metric horsepower; Watt definition: watt.
Worked examples
- A reading of 100 PS converts to 73549.875 W.
100 PS × 735.49875 = 73549.875 W - A value of 200 PS is 147099.75 W.
200 PS × 735.49875 = 147099.75 W
Metric Horsepower to Watt conversion table
| Metric Horsepower (PS) | Watts (W) |
|---|---|
| 1 PS | 735.49875 W |
| 50 PS | 36774.9375 W |
| 75 PS | 55162.40625 W |
| 100 PS | 73549.875 W |
| 110 PS | 80904.8625 W |
| 150 PS | 110324.8125 W |
| 200 PS | 147099.75 W |
| 250 PS | 183874.6875 W |
| 300 PS | 220649.625 W |
| 500 PS | 367749.375 W |
Where it's used
Metric Horsepower are used for european and Japanese car specifications (PS, CV), while watts appear in electrical appliance ratings. Both measure power (energy per unit time), so the conversion is a fixed factor.
Metric Horsepower to other power units
| Conversion | 1 PS equals |
|---|---|
| metric horsepower to watt | 735.49875 W |
| metric horsepower to milliwatt | 735498.75 mW |
| metric horsepower to kilowatt | 0.73549875 kW |
| metric horsepower to megawatt | 0.00073549875 MW |
| metric horsepower to horsepower | 0.9863200706 hp |
| metric horsepower to BTU per hour | 2509.625906 BTU/h |
| metric horsepower to refrigeration ton | 0.2091354922 TR |
| metric horsepower to kilocalorie per hour | 632.4150903 kcal/h |
| metric horsepower to foot-pound per second | 542.4760388 ft·lbf/s |
Frequently asked questions
How many watts are in 1 metric horsepower?
1 PS = 735.49875 W.
How do I convert metric horsepower to watts?
Multiply the value in PS by 735.49875. For example, 15 PS × 735.49875 = 11032.48125 W.
Is the PS to W conversion exact?
Yes. Both units are defined exactly, and 1 PS is exactly 735.49875 W.
Sources
- Guide for the Use of the International System of Units (SI), NIST Special Publication 811, 2008 Edition, National Institute of Standards and Technology , Appendix B.8, "horsepower (metric)".
- The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures , Table 4, coherent derived units with special names.
Last reviewed: . Factors are stored exactly and computed with 50-digit decimal arithmetic. See how we verify conversion factors.
Cite this page
APA
Scientific Converters. (2026, October 15). Convert Metric Horsepower to Watts. Retrieved October 17, 2026, from https://scientificconverters.com/power/metric-horsepower-to-watts/
IEEE
Scientific Converters, "Convert Metric Horsepower to Watts," scientificconverters.com. Accessed: Oct. 17, 2026. [Online]. Available: https://scientificconverters.com/power/metric-horsepower-to-watts/