Convert Metric Horsepower to Tons of Refrigeration
1 metric horsepower (PS) equals 0.2091354922 tons of refrigeration (TR).
1 PS = 0.2091354922 TR
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk metric horsepower to refrigeration ton converter to paste a column from Excel.
How to Convert Metric Horsepower to Ton of Refrigeration
- 1 PS = 0.2091354922 TR
- 1 TR = 4.781589149 PS
- Example: convert 15 PS to TR: 15 PS = 15 × 0.2091354922 TR = 3.137032382 TR
Formula
TR = PS × 0.2091354921657
or TR = PS ÷ 4.781589148951
Derivation from SI units:
- 1 PS = 75 kgf·m/s = 735.49875 W (exact)
- 1 TR = 12 000 BTU/h = 3516.8528420667 W
- 1 PS = 735.49875 W ÷ 3516.852842067 W per TR = 0.2091354921657 TR
Both units are defined exactly, so the factor is exact. Metric Horsepower definition: metric horsepower; Ton of Refrigeration definition: ton of refrigeration.
Worked examples
- A reading of 100 PS converts to 20.91354922 TR.
100 PS × 0.2091354922 = 20.91354922 TR - A value of 200 PS is 41.82709843 TR.
200 PS × 0.2091354922 = 41.82709843 TR
Metric Horsepower to Ton of Refrigeration conversion table
| Metric Horsepower (PS) | Tons of Refrigeration (TR) |
|---|---|
| 1 PS | 0.2091354922 TR |
| 50 PS | 10.45677461 TR |
| 75 PS | 15.68516191 TR |
| 100 PS | 20.91354922 TR |
| 110 PS | 23.00490414 TR |
| 150 PS | 31.37032382 TR |
| 200 PS | 41.82709843 TR |
| 250 PS | 52.28387304 TR |
| 300 PS | 62.74064765 TR |
| 500 PS | 104.5677461 TR |
Where it's used
Metric Horsepower are used for european and Japanese car specifications (PS, CV), while tons of refrigeration appear in air-conditioner and chiller capacity in the US and Asia. 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 tons of refrigeration are in 1 metric horsepower?
1 PS = 0.2091354922 TR.
How do I convert metric horsepower to tons of refrigeration?
Multiply the value in PS by 0.2091354922, or divide it by 4.781589149. For example, 15 PS × 0.2091354922 = 3.137032382 TR.
Is the PS to TR 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, "ton of refrigeration (12 000 Btu_IT/h)".
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 Tons of Refrigeration. Retrieved October 17, 2026, from https://scientificconverters.com/power/metric-horsepower-to-tons-of-refrigeration/
IEEE
Scientific Converters, "Convert Metric Horsepower to Tons of Refrigeration," scientificconverters.com. Accessed: Oct. 17, 2026. [Online]. Available: https://scientificconverters.com/power/metric-horsepower-to-tons-of-refrigeration/