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Power and Energy

PStoTR

Convert metric horsepower (PS) to tons of refrigeration (TR).

Factor1 PS = 0.2091355 TR

Converter

PS

Accepts numbers or expressions, e.g. 150 + 14.7

Result
2.09135TR

Rendered to 6 significant figures.

Formula

Formula
TR = PS × 0.2091355

Multiply any value in metric horsepower by 0.2091355 to obtain the value in tons of refrigeration.

Worked example

Convert 10 PS to TR.

  1. 01Start with 10 PS.
  2. 02Multiply by the conversion factor: 10 × 0.2091355 = 2.09135 TR.
Result10 PS = 2.09135 TR

Conversion table

PSTR
10.20914
20.41827
51.0457
102.0914
204.1827
5010.457
10020.914
20041.827
500104.57
1000209.14

Reference values rounded to 5 significant figures for display.

FAQ

What is the conversion factor from PS to TR?
1 PS equals 0.2091355 TR. To convert, multiply the value in metric horsepower by 0.2091355.
How do I convert 1 PS to TR?
1 PS = 0.209135 TR. For any value, multiply by 0.2091355.
How do I convert TR back to PS?
Divide by the same factor — or equivalently, multiply by 4.781589. So 1 TR = 4.78159 PS.
When would I need to convert metric horsepower to ton of refrigeration?
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).

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