Convert Milliwatts to Tons of refrigeration
1 milliwatt is 2.84e-7 TR. One milliwatt is exactly 2.84345136094e-7 tons of refrigeration.
One milliwatt is 2.8435 × 10^-7 tons of refrigeration. To convert milliwatts to tons of refrigeration, multiply by 2.8435 × 10^-7; to go the other way, divide by 2.8435 × 10^-7 or multiply by 3.5169 × 10^+6. The relation is exact but the figure is not: it is a rounding of a number that does not terminate, and it follows from NIST Special Publication 811. A thousandth of a watt.
Factor checked against the defining standard · How we check
- Milliwatts × 2.8435 × 10^-7
1 * 0.00000030 TR
1 milliwatt in every power unit
| Unit | Value | Exact factor |
|---|---|---|
| horsepower | 0.00000134102209 hp | × 0.0000013410220896 |
| metric horsepower | 0.000001359621617 PS | × 0.0000013596216173 |
| watts | 0.001 W | × 0.001 |
| kilowatts | 0.000001 kW | × 0.000001 |
| milliwatts (as entered) | 1 mW | — |
| megawatts | 0.000000001 MW | × 0.000000001 |
| tons of refrigeration | 0.0000002843451361 TR | × 0.000000284345136094 |
| BTU per hour | 0.003412141633 BTU/h | × 0.00341214163313 |
Factors are entered by hand from NIST Special Publication 811 rather than derived from a units library, so the ones that terminate are exact rather than rounded.
How do you convert milliwatts to tons of refrigeration? The converter and the working
- 1.Take the measurement in milliwatts.
- 2.Multiply by 2.8435 × 10^-7 — that is how many tons of refrigeration fit in one milliwatt.
- 3.To go back the other way, divide by 2.8435 × 10^-7, or multiply by 3.5169 × 10^+6.
Worked example: 25 milliwatts to tons of refrigeration
- Formula
- mW × 2.8435 × 10^-7 = TR
- Arithmetic
- 25 × 2.8435 × 10^-7 = 0.000007109 TR
- Answer
- 25 mW = 0.000007109 TR
The factor is rounded for display; the figure above is computed from the full value.
Milliwatts to tons of refrigeration conversion table
| Milliwatts | Tons of refrigeration |
|---|---|
| 1 mW | 2.84e-7 TR |
| 2 mW | 5.69e-7 TR |
| 3 mW | 8.53e-7 TR |
| 4 mW | 0.000001137 TR |
| 5 mW | 0.000001422 TR |
| 6 mW | 0.000001706 TR |
| 7 mW | 0.00000199 TR |
| 8 mW | 0.000002275 TR |
| 9 mW | 0.000002559 TR |
| 10 mW | 0.000002843 TR |
| 12 mW | 0.000003412 TR |
| 15 mW | 0.000004265 TR |
| 20 mW | 0.000005687 TR |
| 25 mW | 0.000007109 TR |
| 50 mW | 0.00001422 TR |
| 100 mW | 0.00002843 TR |
| 200 mW | 0.00005687 TR |
| 300 mW | 0.0000853 TR |
| 500 mW | 0.0001422 TR |
| 1000 mW | 0.0002843 TR |
| 2000 mW | 0.0005687 TR |
| 5000 mW | 0.001422 TR |
| 10000 mW | 0.002843 TR |
What is a milliwatt?
A thousandth of a watt. Radio transmit power, laser output and audio signal levels are all quoted in it, and dBm is referenced to exactly one.
What is a ton of refrigeration?
Exactly 12,000 BTU an hour — the rate at which a short ton of ice melts over a day, which is what air conditioning was measured against before it was made electrically. A three-ton domestic unit is 36,000 BTU/h, or 10.5 kW.
How many tons of refrigeration are in a milliwatt?
One milliwatt is 2.8435 × 10^-7 tons of refrigeration. Going the other way, one ton of refrigeration is 3.5169 × 10^+6 milliwatts. Both figures come from the same defined relation rather than from a measurement, which is why they are the same today as they were in 1959.
Every power unit here
The whole group — 8 units with their symbols and the size of each one in watts — is on the conversion index, along with every pair it makes. The table above already gives each of them relative to a milliwatt.
Source: NIST Special Publication 811 — mechanical horsepower is 550 ft·lbf/s exactly
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Questions people actually ask
- How many tons of refrigeration are in a milliwatt?
- 2.8435 × 10^-7. Exactly 12,000 BTU an hour — the rate at which a short ton of ice melts over a day, which is what air conditioning was measured against before it was made electrically. A three-ton domestic unit is 36,000 BTU/h, or 10.5 kW.
- How do I convert tons of refrigeration back to milliwatts?
- Divide by 2.8435 × 10^-7, or multiply by 3.5169 × 10^+6 — they are the same operation.
Other power conversions
Tons of refrigeration to milliwatts — the same conversion the other way.