Convert Milliwatts to Tons of Refrigeration
1 milliwatt (mW) equals 2.843451361 × 10⁻⁷ tons of refrigeration (TR).
1 mW = 2.843451361e-7 TR
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk milliwatt to refrigeration ton converter to paste a column from Excel.
How to Convert Milliwatt to Ton of Refrigeration
- 1 mW = 2.843451361 × 10⁻⁷ TR
- 1 TR = 3516852.842 mW
- Example: convert 15 mW to TR: 15 mW = 15 × 2.843451361 × 10⁻⁷ TR = 0.000004265177041 TR
Formula
TR = mW × 2.84345136094 × 10⁻⁷
or TR = mW ÷ 3516852.842067
Derivation from SI units:
- 1 mW = 10⁻³ W
- 1 TR = 12 000 BTU/h = 3516.8528420667 W
- 1 mW = 0.001 W ÷ 3516.852842067 W per TR = 2.84345136094 × 10⁻⁷ TR
Both units are defined exactly, so the factor is exact. Milliwatt definition: milliwatt; Ton of Refrigeration definition: ton of refrigeration.
Worked examples
- A reading of 10 mW converts to 0.000002843451361 TR.
10 mW × 2.843451361 × 10⁻⁷ = 0.000002843451361 TR - A value of 200 mW is 0.00005686902722 TR.
200 mW × 2.843451361 × 10⁻⁷ = 0.00005686902722 TR
Milliwatt to Ton of Refrigeration conversion table
| Milliwatts (mW) | Tons of Refrigeration (TR) |
|---|---|
| 0.1 mW | 2.843451361 × 10⁻⁸ TR |
| 1 mW | 2.843451361 × 10⁻⁷ TR |
| 5 mW | 0.00000142172568 TR |
| 10 mW | 0.000002843451361 TR |
| 50 mW | 0.0000142172568 TR |
| 100 mW | 0.00002843451361 TR |
| 200 mW | 0.00005686902722 TR |
| 500 mW | 0.000142172568 TR |
| 1000 mW | 0.0002843451361 TR |
Where it's used
Milliwatts are used for laser pointer and diode output, 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.
Milliwatt to other power units
| Conversion | 1 mW equals |
|---|---|
| milliwatt to watt | 0.001 W |
| milliwatt to kilowatt | 0.000001 kW |
| milliwatt to megawatt | 1 × 10⁻⁹ MW |
| milliwatt to horsepower | 0.00000134102209 hp |
| milliwatt to metric horsepower | 0.000001359621617 PS |
| milliwatt to BTU per hour | 0.003412141633 BTU/h |
| milliwatt to refrigeration ton | 2.843451361 × 10⁻⁷ TR |
| milliwatt to kilocalorie per hour | 0.0008598452279 kcal/h |
| milliwatt to foot-pound per second | 0.0007375621493 ft·lbf/s |
Frequently asked questions
How many tons of refrigeration are in 1 milliwatt?
1 mW = 2.843451361 × 10⁻⁷ TR.
How do I convert milliwatts to tons of refrigeration?
Multiply the value in mW by 2.843451361 × 10⁻⁷, or divide it by 3516852.842. For example, 15 mW × 2.843451361 × 10⁻⁷ = 0.000004265177041 TR.
Is the mW 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 7, SI prefixes.
- 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 Milliwatts to Tons of Refrigeration. Retrieved October 17, 2026, from https://scientificconverters.com/power/milliwatts-to-tons-of-refrigeration/
IEEE
Scientific Converters, "Convert Milliwatts to Tons of Refrigeration," scientificconverters.com. Accessed: Oct. 17, 2026. [Online]. Available: https://scientificconverters.com/power/milliwatts-to-tons-of-refrigeration/