| imperial ton of refrigeration | 1 TR (imperial) | 2 TR (imperial) | 3 TR (imperial) | 4 TR (imperial) | 5 TR (imperial) | 6 TR (imperial) | 7 TR (imperial) | 8 TR (imperial) | 9 TR (imperial) | 10 TR (imperial) | 11 TR (imperial) | 12 TR (imperial) | 13 TR (imperial) | 14 TR (imperial) | 15 TR (imperial) | 16 TR (imperial) | 17 TR (imperial) | 18 TR (imperial) | 19 TR (imperial) | 20 TR (imperial) | 21 TR (imperial) | 22 TR (imperial) | 23 TR (imperial) | 24 TR (imperial) | 25 TR (imperial) | 26 TR (imperial) | 27 TR (imperial) | 28 TR (imperial) | 29 TR (imperial) | 30 TR (imperial) | 31 TR (imperial) | 32 TR (imperial) | 33 TR (imperial) | 34 TR (imperial) | 35 TR (imperial) | 36 TR (imperial) | 37 TR (imperial) | 38 TR (imperial) | 39 TR (imperial) | 40 TR (imperial) | 41 TR (imperial) | 42 TR (imperial) | 43 TR (imperial) | 44 TR (imperial) | 45 TR (imperial) | 46 TR (imperial) | 47 TR (imperial) | 48 TR (imperial) | 49 TR (imperial) | 50 TR (imperial) | 51 TR (imperial) | 52 TR (imperial) | 53 TR (imperial) | 54 TR (imperial) | 55 TR (imperial) | 56 TR (imperial) | 57 TR (imperial) | 58 TR (imperial) | 59 TR (imperial) | 60 TR (imperial) | 61 TR (imperial) | 62 TR (imperial) | 63 TR (imperial) | 64 TR (imperial) | 65 TR (imperial) | 66 TR (imperial) | 67 TR (imperial) | 68 TR (imperial) | 69 TR (imperial) | 70 TR (imperial) | 71 TR (imperial) | 72 TR (imperial) | 73 TR (imperial) | 74 TR (imperial) | 75 TR (imperial) | 76 TR (imperial) | 77 TR (imperial) | 78 TR (imperial) | 79 TR (imperial) | 80 TR (imperial) | 81 TR (imperial) | 82 TR (imperial) | 83 TR (imperial) | 84 TR (imperial) | 85 TR (imperial) | 86 TR (imperial) | 87 TR (imperial) | 88 TR (imperial) | 89 TR (imperial) | 90 TR (imperial) | 91 TR (imperial) | 92 TR (imperial) | 93 TR (imperial) | 94 TR (imperial) | 95 TR (imperial) | 96 TR (imperial) | 97 TR (imperial) | 98 TR (imperial) | 99 TR (imperial) | 100 TR (imperial) |
| femtowatt | 3.938875 × 1018 fW | 7.87775 × 1018 fW | 1.1816625 × 1019 fW | 1.57555 × 1019 fW | 1.9694375 × 1019 fW | 2.363325 × 1019 fW | 2.7572125 × 1019 fW | 3.1511 × 1019 fW | 3.5449875 × 1019 fW | 3.938875 × 1019 fW | 4.3327625 × 1019 fW | 4.72665 × 1019 fW | 5.1205375 × 1019 fW | 5.514425 × 1019 fW | 5.9083125 × 1019 fW | 6.3022 × 1019 fW | 6.6960875 × 1019 fW | 7.089975 × 1019 fW | 7.4838625 × 1019 fW | 7.87775 × 1019 fW | 8.2716375 × 1019 fW | 8.665525 × 1019 fW | 9.0594125 × 1019 fW | 9.4533 × 1019 fW | 9.8471875 × 1019 fW | 1.0241075 × 1020 fW | 1.06349625 × 1020 fW | 1.102885 × 1020 fW | 1.14227375 × 1020 fW | 1.1816625 × 1020 fW | 1.22105125 × 1020 fW | 1.26044 × 1020 fW | 1.29982875 × 1020 fW | 1.3392175 × 1020 fW | 1.37860625 × 1020 fW | 1.417995 × 1020 fW | 1.45738375 × 1020 fW | 1.4967725 × 1020 fW | 1.53616125 × 1020 fW | 1.57555 × 1020 fW | 1.61493875 × 1020 fW | 1.6543275 × 1020 fW | 1.69371625 × 1020 fW | 1.733105 × 1020 fW | 1.77249375 × 1020 fW | 1.8118825 × 1020 fW | 1.85127125 × 1020 fW | 1.89066 × 1020 fW | 1.93004875 × 1020 fW | 1.9694375 × 1020 fW | 2.00882625 × 1020 fW | 2.048215 × 1020 fW | 2.08760375 × 1020 fW | 2.1269925 × 1020 fW | 2.16638125 × 1020 fW | 2.20577 × 1020 fW | 2.24515875 × 1020 fW | 2.2845475 × 1020 fW | 2.32393625 × 1020 fW | 2.363325 × 1020 fW | 2.40271375 × 1020 fW | 2.4421025 × 1020 fW | 2.48149125 × 1020 fW | 2.52088 × 1020 fW | 2.56026875 × 1020 fW | 2.5996575 × 1020 fW | 2.63904625 × 1020 fW | 2.678435 × 1020 fW | 2.71782375 × 1020 fW | 2.7572125 × 1020 fW | 2.79660125 × 1020 fW | 2.83599 × 1020 fW | 2.87537875 × 1020 fW | 2.9147675 × 1020 fW | 2.95415625 × 1020 fW | 2.993545 × 1020 fW | 3.03293375 × 1020 fW | 3.0723225 × 1020 fW | 3.11171125 × 1020 fW | 3.1511 × 1020 fW | 3.19048875 × 1020 fW | 3.2298775 × 1020 fW | 3.26926625 × 1020 fW | 3.308655 × 1020 fW | 3.34804375 × 1020 fW | 3.3874325 × 1020 fW | 3.42682125 × 1020 fW | 3.46621 × 1020 fW | 3.50559875 × 1020 fW | 3.5449875 × 1020 fW | 3.58437625 × 1020 fW | 3.623765 × 1020 fW | 3.66315375 × 1020 fW | 3.7025425 × 1020 fW | 3.74193125 × 1020 fW | 3.78132 × 1020 fW | 3.82070875 × 1020 fW | 3.8600975 × 1020 fW | 3.89948625 × 1020 fW | 3.938875 × 1020 fW |
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.
| 1 imperial ton of refrigerations ≈ 3.938875E+18 femtowatts | 6 imperial ton of refrigerations ≈ 2.363325E+19 femtowatts |
| 2 imperial ton of refrigerations ≈ 7.87775E+18 femtowatts | 7 imperial ton of refrigerations ≈ 2.7572125E+19 femtowatts |
| 3 imperial ton of refrigerations ≈ 1.1816625E+19 femtowatts | 8 imperial ton of refrigerations ≈ 3.1511E+19 femtowatts |
| 4 imperial ton of refrigerations ≈ 1.57555E+19 femtowatts | 9 imperial ton of refrigerations ≈ 3.5449875E+19 femtowatts |
| 5 imperial ton of refrigerations ≈ 1.9694375E+19 femtowatts | 10 imperial ton of refrigerations ≈ 3.938875E+19 femtowatts |
The femtowatt (fW) is equal to one quadrillionth (10−15) of a watt. Technologically important powers that are measured in femtowatts are typically found in reference(s) to radio and radar receivers. For example, meaningful FM tuner performance figures for sensitivity, quieting and signal-to-noise require that the RF energy applied to the antenna input be specified. These input levels are often stated in dBf (decibels referenced to 1 femtowatt). This is 0.2739 microvolt across a 75-ohm load or 0.5477 microvolt across a 300-ohm load; the specification takes into account the RF input impedance of the tuner.
| 1 femtowatts ≈ 2.5387959760084E-19 imperial ton of refrigerations | 6 femtowatts ≈ 1.523277585605E-18 imperial ton of refrigerations |
| 2 femtowatts ≈ 5.0775919520168E-19 imperial ton of refrigerations | 7 femtowatts ≈ 1.7771571832059E-18 imperial ton of refrigerations |
| 3 femtowatts ≈ 7.6163879280251E-19 imperial ton of refrigerations | 8 femtowatts ≈ 2.0310367808067E-18 imperial ton of refrigerations |
| 4 femtowatts ≈ 1.0155183904034E-18 imperial ton of refrigerations | 9 femtowatts ≈ 2.2849163784075E-18 imperial ton of refrigerations |
| 5 femtowatts ≈ 1.2693979880042E-18 imperial ton of refrigerations | 10 femtowatts ≈ 2.5387959760084E-18 imperial ton of refrigerations |
| 1 imperial ton of refrigerations ≈ 3.938875 × 1018 femtowatts |
| 1 femtowatts ≈ 2.5387959760084 × 10-19 imperial ton of refrigerations |