Convert refrigeration tons to kilowatts or kW to tons, with cooling capacity shown in watts, BTU per hour, and kJ per minute.

Cooling capacity: 1 TR (ton of refrigeration) = 12,000 Btu/h โ‰ˆ 3.516853 kW.

Optional settings
Electrical use depends on equipment efficiency; these are typical values.

Tons to kW Conversion Formula

The following formula is used to convert cooling capacity from tons to kilowatts (kW):

P (kW thermal) โ‰ˆ C (TR) ร— 3.516853

Variables:

  • P is thermal cooling power in kilowatts (kW), not electrical input
  • C is the cooling capacity in tons
  • 3.516853 is the rounded conversion factor from refrigeration tons to thermal kW

To convert refrigeration tons to thermal kW, multiply by3.516853. Reverse conversion divides cooling kW by this factor. One refrigeration ton equals12000Btu(IT)/h;3.516853kW/TR is rounded. Electrical input also requires equipment performance information such as cooling COP.

Refrigeration Tons to Kilowatts Conversion Table
Refrigeration Tons (RT) Kilowatts (kW)
ยผ0.879
ยฝ1.758
ยพ2.638
13.517
1ยผ4.396
1ยฝ5.275
27.034
2ยฝ8.792
310.551
3ยฝ12.309
414.067
517.584
621.101
7ยฝ26.376
828.135
1035.169
1242.202
1552.753
2070.337
2587.921
* Rounded to 3 decimals. Uses1refrigeration ton =12000Btu(IT)/h and approximately3.516853kW. Values below use the unrounded-in-calculation3.516853factor; table display rounds to3decimals.

What is Cooling Capacity in Tons?

Cooling capacity in tons is a unit of power used in the United States to describe the rate at which an air conditioning system can remove heat from a space. One ton of cooling is equal to the amount of heat absorbed by one ton of ice causing it to melt completely over a period of 24 hours. It is equivalent to a heat absorption rate of 12,000 BTU per hour.

How to Convert Tons to kW?

The following steps outline how to convert the cooling capacity from tons to kilowatts (kW).


  1. First, determine the cooling capacity in tons.
  2. Next, use cooling kW โ‰ˆ refrigeration tons ร—3.516853. Select the reverse task to divide cooling kW by the same factor.
  3. Finally, calculate the power in kilowatts (kW).
  4. After inserting the variable and calculating the result, check your answer with the calculator above.

Example Problem :

Use the following variable as an example problem to test your knowledge.

Cooling capacity (C) = 5 tons

Using the conversion formula: P โ‰ˆ5TR ร—3.516853kW/TR =17.584265kW of cooling, displayed as17.58kW at the default2decimal setting.