Refrigeration tons to kilowatts conversion
Convert refrigeration tons (TR) to kilowatts (kW) instantly. Uses 1 TR = 3.517 kW formula. Includes reverse conversion from kW to TR for HVAC and cooling systems.

cooling capacity conversion
Refrigeration tons to kilowatts can easily be converted by using formula kW = TR X 3.517. Invert the formula so that cooling capacity planning in HVAC and refrigeration is expressed as TR = kW/3.517.
Formula & Table Summary:
Formulas
TR → kW: kW = TR × 3.517
kW → TR: TR = kW ÷ 3.517
1 TR = 12000 BTU/hr = 3.517 kW
refrigeration capacity to kw
Refrigeration Tons to Kilowatts Converter converts easily between cooling capacity of tons of refrigeration (TR) and kilowatts (kW), and back. A ton of refrigeration is the heatsock per hour rate at which it is possible to freeze one ton of water in 24 h. 1 TRby definition = 3.517 kW (rounded off 3.51685 kW). In reverse conversion TR = kW/3.517. This device is common in HVAC, industrial cooling, and cooling of refrigeration criteria. The process of TR conversion to kW enables engineers, technicians and designers to make the right combination of equipment capacity and cooling loads. In sizing chillers, air conditioners or refrigeration plants, proper conversion allows the most effective energy consumption, prevents over or under sizing as well as assisting in meeting specifications. This tool can be used in commercial as well as domestic air conditioning systems and chilling of processes.
ton refrigeration to kw formula
| TR | kW |
|---|---|
| 1 | 3.517 |
| 2 | 7.034 |
| 5 | 17.585 |
| 10 | 35.17 |
| 20 | 70.34 |
Frequently Asked Questions - Refrigeration tons to kilowatts conversion:
What is the formula for TR to kW?
kW = TR × 3.517, based on 1 TR = 12000 BTU/hr.
How do I convert kW to TR?
TR = kW ÷ 3.517.
What does 1 TR mean?
It is the cooling capacity to freeze one ton of water in 24 hours.
Is 3.517 kW exact for 1 TR?
Yes, it comes from 12000 BTU/hr × 0.00029307107 kW/BTU/hr.
Why use TR instead of kW?
TR is common in HVAC; kW is standard in electrical engineering.
Can this formula be used for AC sizing?
Yes, most air conditioners are rated in TR or kW.
Does efficiency affect conversion?
No, but actual electrical demand will be higher due to system losses.
What is 5 TR in kW?
5 × 3.517 = 17.585 kW.
How many TR is 50 kW?
50 ÷ 3.517 ≈ 14.22 TR.
Is TR used worldwide?
Mostly in Asia; many other regions use kW or BTU/hr.
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