Convert Metric Horsepower to Kilocalories per Hour
1 metric horsepower (PS) equals 632.4150903 kilocalories per hour (kcal/h).
1 PS = 632.4150903 kcal/h
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk metric horsepower to kilocalorie per hour converter to paste a column from Excel.
How to Convert Metric Horsepower to Kilocalorie per Hour
- 1 PS = 632.4150903 kcal/h
- 1 kcal/h = 0.001581239941 PS
- Example: convert 15 PS to kcal/h: 15 PS = 15 × 632.4150903 kcal/h = 9486.226354 kcal/h
Reference conditions. kcal/h: Uses the International Table kilocalorie (4186.8 J), the convention in heating and HVAC: 1 kcal/h = 1.163 W.
Formula
kcal/h = PS × 632.4150902837
Derivation from SI units:
- 1 PS = 75 kgf·m/s = 735.49875 W (exact)
- 1 kcal_IT/h = 4186.8 J ÷ 3600 s = 1.163 W (exact)
- 1 PS = 735.49875 W ÷ 1.163 W per kcal/h = 632.4150902837 kcal/h
Both units are defined exactly, so the factor is exact. Metric Horsepower definition: metric horsepower; Kilocalorie per Hour definition: kilocalorie per hour.
Worked examples
- A reading of 100 PS converts to 63241.50903 kcal/h.
100 PS × 632.4150903 = 63241.50903 kcal/h - A value of 200 PS is 126483.0181 kcal/h.
200 PS × 632.4150903 = 126483.0181 kcal/h
Metric Horsepower to Kilocalorie per Hour conversion table
| Metric Horsepower (PS) | Kilocalories per Hour (kcal/h) |
|---|---|
| 1 PS | 632.4150903 kcal/h |
| 50 PS | 31620.75451 kcal/h |
| 75 PS | 47431.13177 kcal/h |
| 100 PS | 63241.50903 kcal/h |
| 110 PS | 69565.65993 kcal/h |
| 150 PS | 94862.26354 kcal/h |
| 200 PS | 126483.0181 kcal/h |
| 250 PS | 158103.7726 kcal/h |
| 300 PS | 189724.5271 kcal/h |
| 500 PS | 316207.5451 kcal/h |
Where it's used
Metric Horsepower are used for european and Japanese car specifications (PS, CV), while kilocalories per hour appear in radiator and boiler ratings in older European data. 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 kilocalories per hour are in 1 metric horsepower?
1 PS = 632.4150903 kcal/h.
How do I convert metric horsepower to kilocalories per hour?
Multiply the value in PS by 632.4150903. For example, 15 PS × 632.4150903 = 9486.226354 kcal/h.
Is the PS to kcal/h conversion exact?
Yes. Both units are defined exactly, so the ratio is exact; its decimal form does not terminate and is shown here to 10 significant figures (more with the precision selector).
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)".
- 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, "calorie_IT" with hour.
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 Kilocalories per Hour. Retrieved October 17, 2026, from https://scientificconverters.com/power/metric-horsepower-to-kilocalories-per-hour/
IEEE
Scientific Converters, "Convert Metric Horsepower to Kilocalories per Hour," scientificconverters.com. Accessed: Oct. 17, 2026. [Online]. Available: https://scientificconverters.com/power/metric-horsepower-to-kilocalories-per-hour/