watt | 1 W | 2 W | 3 W | 4 W | 5 W | 6 W | 7 W | 8 W | 9 W | 10 W | 11 W | 12 W | 13 W | 14 W | 15 W | 16 W | 17 W | 18 W | 19 W | 20 W | 21 W | 22 W | 23 W | 24 W | 25 W | 26 W | 27 W | 28 W | 29 W | 30 W | 31 W | 32 W | 33 W | 34 W | 35 W | 36 W | 37 W | 38 W | 39 W | 40 W | 41 W | 42 W | 43 W | 44 W | 45 W | 46 W | 47 W | 48 W | 49 W | 50 W | 51 W | 52 W | 53 W | 54 W | 55 W | 56 W | 57 W | 58 W | 59 W | 60 W | 61 W | 62 W | 63 W | 64 W | 65 W | 66 W | 67 W | 68 W | 69 W | 70 W | 71 W | 72 W | 73 W | 74 W | 75 W | 76 W | 77 W | 78 W | 79 W | 80 W | 81 W | 82 W | 83 W | 84 W | 85 W | 86 W | 87 W | 88 W | 89 W | 90 W | 91 W | 92 W | 93 W | 94 W | 95 W | 96 W | 97 W | 98 W | 99 W | 100 W |
ton of refrigeration (IT) | 0.0002843 TR | 0.0005687 TR | 0.0008530 TR | 0.0011374 TR | 0.0014217 TR | 0.0017061 TR | 0.0019904 TR | 0.0022748 TR | 0.0025591 TR | 0.0028435 TR | 0.0031278 TR | 0.0034121 TR | 0.0036965 TR | 0.0039808 TR | 0.0042652 TR | 0.0045495 TR | 0.0048339 TR | 0.0051182 TR | 0.0054026 TR | 0.0056869 TR | 0.0059712 TR | 0.0062556 TR | 0.0065399 TR | 0.0068243 TR | 0.0071086 TR | 0.0073930 TR | 0.0076773 TR | 0.0079617 TR | 0.0082460 TR | 0.0085304 TR | 0.0088147 TR | 0.0090990 TR | 0.0093834 TR | 0.0096677 TR | 0.0099521 TR | 0.0102364 TR | 0.0105208 TR | 0.0108051 TR | 0.0110895 TR | 0.0113738 TR | 0.0116582 TR | 0.0119425 TR | 0.0122268 TR | 0.0125112 TR | 0.0127955 TR | 0.0130799 TR | 0.0133642 TR | 0.0136486 TR | 0.0139329 TR | 0.0142173 TR | 0.0145016 TR | 0.0147859 TR | 0.0150703 TR | 0.0153546 TR | 0.0156390 TR | 0.0159233 TR | 0.0162077 TR | 0.0164920 TR | 0.0167764 TR | 0.0170607 TR | 0.0173451 TR | 0.0176294 TR | 0.0179137 TR | 0.0181981 TR | 0.0184824 TR | 0.0187668 TR | 0.0190511 TR | 0.0193355 TR | 0.0196198 TR | 0.0199042 TR | 0.0201885 TR | 0.0204728 TR | 0.0207572 TR | 0.0210415 TR | 0.0213259 TR | 0.0216102 TR | 0.0218946 TR | 0.0221789 TR | 0.0224633 TR | 0.0227476 TR | 0.0230320 TR | 0.0233163 TR | 0.0236006 TR | 0.0238850 TR | 0.0241693 TR | 0.0244537 TR | 0.0247380 TR | 0.0250224 TR | 0.0253067 TR | 0.0255911 TR | 0.0258754 TR | 0.0261598 TR | 0.0264441 TR | 0.0267284 TR | 0.0270128 TR | 0.0272971 TR | 0.0275815 TR | 0.0278658 TR | 0.0281502 TR | 0.0284345 TR |
The watt (symbol: W) is a derived unit of power in the International System of Units (SI) defined as 1 joule per second and can be used to quantify the rate of energy transfer. Power has dimensions of ML2T-3.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
watt | W | The power which in one second of time gives rise to one joule of energy. | = 1 W = 1 J/s = 1 N·m/s = 1 kg·m2/s3 | Metric system SI |
watts | tons of refrigeration (IT) | watts | tons of refrigeration (IT) |
---|---|---|---|
1 | ≈ 0.00028434512332475 | 6 | ≈ 0.0017060707399485 |
2 | ≈ 0.00056869024664949 | 7 | ≈ 0.0019904158632732 |
3 | ≈ 0.00085303536997424 | 8 | ≈ 0.002274760986598 |
4 | ≈ 0.001137380493299 | 9 | ≈ 0.0025591061099227 |
5 | ≈ 0.0014217256166237 | 10 | ≈ 0.0028434512332475 |
A ton of refrigeration (TR), also called a refrigeration ton (RT), is a unit of power used in some countries (especially in North America) to describe the heat-extraction capacity of refrigeration and air conditioning equipment.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
ton of refrigeration (IT) | TR | ≡ 2000 lb × iceIT / 24 h: iceIT = 144 °F × 2326 J/kg·°F | ≈ 3.516853×103 W | Imperial/US |
tons of refrigeration (IT) | watts | tons of refrigeration (IT) | watts |
---|---|---|---|
1 | ≈ 3516.853 | 6 | ≈ 21101.118 |
2 | ≈ 7033.706 | 7 | ≈ 24617.971 |
3 | ≈ 10550.559 | 8 | ≈ 28134.824 |
4 | ≈ 14067.412 | 9 | ≈ 31651.677 |
5 | ≈ 17584.265 | 10 | ≈ 35168.53 |
watts | tons of refrigeration (IT) |
---|---|
1 | ≈ 0.0002843 |
3,516.853 | ≈ 1 |
Symbol | Definition |
---|---|
≡ | exactly equal |
≈ | approximately equal to |
= | equal to |
digits | indicates that digits repeat infinitely (e.g. 8.294 369 corresponds to 8.294 369 369 369 369 …) |