Convert Watts to Tons of refrigeration
1 watt is 0.0002843 TR. One watt is exactly 0.000284345136094 tons of refrigeration.
One watt is 2.8435 × 10^-4 tons of refrigeration. To convert watts to tons of refrigeration, multiply by 2.8435 × 10^-4; to go the other way, divide by 2.8435 × 10^-4 or multiply by 3516.8528. 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. The SI unit: one joule every second.
Factor checked against the defining standard · How we check
- Watts × 2.8435 × 10^-4
1 * 0.00028430 TR
1 watt in every power unit
| Unit | Value | Exact factor |
|---|---|---|
| horsepower | 0.00134102209 hp | × 0.0013410220896 |
| metric horsepower | 0.001359621617 PS | × 0.0013596216173 |
| watts (as entered) | 1 W | — |
| kilowatts | 0.001 kW | × 0.001 |
| milliwatts | 1,000 mW | × 1,000 |
| megawatts | 0.000001 MW | × 0.000001 |
| tons of refrigeration | 0.0002843451361 TR | × 0.000284345136094 |
| BTU per hour | 3.412141633 BTU/h | × 3.41214163313 |
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 watts to tons of refrigeration? The converter and the working
- 1.Take the measurement in watts.
- 2.Multiply by 2.8435 × 10^-4 — that is how many tons of refrigeration fit in one watt.
- 3.To go back the other way, divide by 2.8435 × 10^-4, or multiply by 3516.8528.
Worked example: 25 watts to tons of refrigeration
- Formula
- W × 2.8435 × 10^-4 = TR
- Arithmetic
- 25 × 2.8435 × 10^-4 = 0.01 TR
- Answer
- 25 W = 0.01 TR
The factor is rounded for display; the figure above is computed from the full value.
Watts to tons of refrigeration conversion table
| Watts | Tons of refrigeration |
|---|---|
| 1 W | 0.0002843 TR |
| 2 W | 0.0005687 TR |
| 3 W | 0.000853 TR |
| 4 W | 0.001137 TR |
| 5 W | 0.001422 TR |
| 6 W | 0.001706 TR |
| 7 W | 0.00199 TR |
| 8 W | 0.002275 TR |
| 9 W | 0.002559 TR |
| 10 W | 0.002843 TR |
| 12 W | 0.003412 TR |
| 15 W | 0.004265 TR |
| 20 W | 0.01 TR |
| 25 W | 0.01 TR |
| 50 W | 0.01 TR |
| 100 W | 0.03 TR |
| 200 W | 0.06 TR |
| 300 W | 0.09 TR |
| 500 W | 0.14 TR |
| 1000 W | 0.28 TR |
| 2000 W | 0.57 TR |
| 5000 W | 1.42 TR |
| 10000 W | 2.84 TR |
What is a watt?
The SI unit: one joule every second. A watt is a rate, not an amount, which is the distinction between it and the watt-hour on your electricity bill.
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 watt?
One watt is 2.8435 × 10^-4 tons of refrigeration. Going the other way, one ton of refrigeration is 3516.8528 watts. 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 watt.
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 watt?
- 2.8435 × 10^-4. 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 watts?
- Divide by 2.8435 × 10^-4, or multiply by 3516.8528 — they are the same operation.
Other power conversions
Tons of refrigeration to watts — the same conversion the other way.