Convert Watts to Tons of Refrigeration
1 watt (W) equals 0.0002843451361 tons of refrigeration (TR).
1 W = 0.0002843451361 TR
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk watt to refrigeration ton converter to paste a column from Excel.
How to Convert Watt to Ton of Refrigeration
- 1 W = 0.0002843451361 TR
- 1 TR = 3516.852842 W
- Example: convert 15 W to TR: 15 W = 15 × 0.0002843451361 TR = 0.004265177041 TR
Formula
TR = W × 0.000284345136094
or TR = W ÷ 3516.852842067
Derivation from SI units:
- 1 W = 1 J/s = 1 kg·m²·s⁻³
- 1 TR = 12 000 BTU/h = 3516.8528420667 W
Both units are defined exactly, so the factor is exact. Watt definition: watt; Ton of Refrigeration definition: ton of refrigeration.
Worked examples
- A reading of 100 W converts to 0.02843451361 TR.
100 W × 0.0002843451361 = 0.02843451361 TR - A value of 1500 W is 0.4265177041 TR.
1500 W × 0.0002843451361 = 0.4265177041 TR
Watt to Ton of Refrigeration conversion table
| Watts (W) | Tons of Refrigeration (TR) |
|---|---|
| 1 W | 0.0002843451361 TR |
| 5 W | 0.00142172568 TR |
| 10 W | 0.002843451361 TR |
| 40 W | 0.01137380544 TR |
| 60 W | 0.01706070817 TR |
| 100 W | 0.02843451361 TR |
| 250 W | 0.07108628402 TR |
| 500 W | 0.142172568 TR |
| 746 W | 0.2121214715 TR |
| 1000 W | 0.2843451361 TR |
| 1500 W | 0.4265177041 TR |
| 2000 W | 0.5686902722 TR |
| 3500 W | 0.9952079763 TR |
| 5000 W | 1.42172568 TR |
| 10000 W | 2.843451361 TR |
Where it's used
Watts are used for electrical appliance ratings, 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.
Watt to other power units
| Conversion | 1 W equals |
|---|---|
| watt to milliwatt | 1000 mW |
| watt to kilowatt | 0.001 kW |
| watt to megawatt | 0.000001 MW |
| watt to horsepower | 0.00134102209 hp |
| watt to metric horsepower | 0.001359621617 PS |
| watt to BTU per hour | 3.412141633 BTU/h |
| watt to refrigeration ton | 0.0002843451361 TR |
| watt to kilocalorie per hour | 0.8598452279 kcal/h |
| watt to foot-pound per second | 0.7375621493 ft·lbf/s |
Frequently asked questions
How many tons of refrigeration are in 1 watt?
1 W = 0.0002843451361 TR.
How do I convert watts to tons of refrigeration?
Multiply the value in W by 0.0002843451361, or divide it by 3516.852842. For example, 15 W × 0.0002843451361 = 0.004265177041 TR.
Is the W 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
- The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures , Table 4, coherent derived units with special names.
- 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 Watts to Tons of Refrigeration. Retrieved October 17, 2026, from https://scientificconverters.com/power/watts-to-tons-of-refrigeration/
IEEE
Scientific Converters, "Convert Watts to Tons of Refrigeration," scientificconverters.com. Accessed: Oct. 17, 2026. [Online]. Available: https://scientificconverters.com/power/watts-to-tons-of-refrigeration/