| 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) |
| BTU per hour | 13,440.0025932 BTUIT/h | 26,880.0051865 BTUIT/h | 40,320.0077797 BTUIT/h | 53,760.0103729 BTUIT/h | 67,200.0129661 BTUIT/h | 80,640.0155594 BTUIT/h | 94,080.0181526 BTUIT/h | 107,520.0207458 BTUIT/h | 120,960.0233391 BTUIT/h | 134,400.0259323 BTUIT/h | 147,840.0285255 BTUIT/h | 161,280.0311187 BTUIT/h | 174,720.0337120 BTUIT/h | 188,160.0363052 BTUIT/h | 201,600.0388984 BTUIT/h | 215,040.0414917 BTUIT/h | 228,480.0440849 BTUIT/h | 241,920.0466781 BTUIT/h | 255,360.0492713 BTUIT/h | 268,800.0518646 BTUIT/h | 282,240.0544578 BTUIT/h | 295,680.0570510 BTUIT/h | 309,120.0596443 BTUIT/h | 322,560.0622375 BTUIT/h | 336,000.0648307 BTUIT/h | 349,440.0674239 BTUIT/h | 362,880.0700172 BTUIT/h | 376,320.0726104 BTUIT/h | 389,760.0752036 BTUIT/h | 403,200.0777969 BTUIT/h | 416,640.0803901 BTUIT/h | 430,080.0829833 BTUIT/h | 443,520.0855765 BTUIT/h | 456,960.0881698 BTUIT/h | 470,400.0907630 BTUIT/h | 483,840.0933562 BTUIT/h | 497,280.0959495 BTUIT/h | 510,720.0985427 BTUIT/h | 524,160.1011359 BTUIT/h | 537,600.1037291 BTUIT/h | 551,040.1063224 BTUIT/h | 564,480.1089156 BTUIT/h | 577,920.1115088 BTUIT/h | 591,360.1141020 BTUIT/h | 604,800.1166953 BTUIT/h | 618,240.1192885 BTUIT/h | 631,680.1218817 BTUIT/h | 645,120.1244750 BTUIT/h | 658,560.1270682 BTUIT/h | 672,000.1296614 BTUIT/h | 685,440.1322546 BTUIT/h | 698,880.1348479 BTUIT/h | 712,320.1374411 BTUIT/h | 725,760.1400343 BTUIT/h | 739,200.1426276 BTUIT/h | 752,640.1452208 BTUIT/h | 766,080.1478140 BTUIT/h | 779,520.1504072 BTUIT/h | 792,960.1530005 BTUIT/h | 806,400.1555937 BTUIT/h | 819,840.1581869 BTUIT/h | 833,280.1607802 BTUIT/h | 846,720.1633734 BTUIT/h | 860,160.1659666 BTUIT/h | 873,600.1685598 BTUIT/h | 887,040.1711531 BTUIT/h | 900,480.1737463 BTUIT/h | 913,920.1763395 BTUIT/h | 927,360.1789328 BTUIT/h | 940,800.1815260 BTUIT/h | 954,240.1841192 BTUIT/h | 967,680.1867124 BTUIT/h | 981,120.1893057 BTUIT/h | 994,560.1918989 BTUIT/h | 1,008,000.1944921 BTUIT/h | 1,021,440.1970853 BTUIT/h | 1,034,880.1996786 BTUIT/h | 1,048,320.2022718 BTUIT/h | 1,061,760.204865 BTUIT/h | 1,075,200.2074583 BTUIT/h | 1,088,640.2100515 BTUIT/h | 1,102,080.2126447 BTUIT/h | 1,115,520.2152379 BTUIT/h | 1,128,960.2178312 BTUIT/h | 1,142,400.2204244 BTUIT/h | 1,155,840.2230176 BTUIT/h | 1,169,280.2256109 BTUIT/h | 1,182,720.2282041 BTUIT/h | 1,196,160.2307973 BTUIT/h | 1,209,600.2333905 BTUIT/h | 1,223,040.2359838 BTUIT/h | 1,236,480.238577 BTUIT/h | 1,249,920.2411702 BTUIT/h | 1,263,360.2437635 BTUIT/h | 1,276,800.2463567 BTUIT/h | 1,290,240.2489499 BTUIT/h | 1,303,680.2515431 BTUIT/h | 1,317,120.2541364 BTUIT/h | 1,330,560.2567296 BTUIT/h | 1,344,000.2593228 BTUIT/h |
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 |
|---|---|---|---|---|
| imperial ton of refrigeration | TR (imperial) | ≡ 2240 lb × iceIT / 24 h: iceIT = 144 °F × 2326 J/kg·°F | ≈ 3.938875×103 W | Imperial/US |
| imperial ton of refrigerations | BTU per hour | imperial ton of refrigerations | BTU per hour |
|---|---|---|---|
| 1 | ≈ 13440.002593228 | 6 | ≈ 80640.01555937 |
| 2 | ≈ 26880.005186457 | 7 | ≈ 94080.018152598 |
| 3 | ≈ 40320.007779685 | 8 | ≈ 107520.02074583 |
| 4 | ≈ 53760.010372913 | 9 | ≈ 120960.02333905 |
| 5 | ≈ 67200.012966141 | 10 | ≈ 134400.02593228 |
A BTU per hour (symbol: BTUIT/hour) is the unit of power.
| Name of unit | Symbol | Definition | Relation to SI units | Unit System |
|---|---|---|---|---|
| BTU per hour | BTUIT/h | ≡ 1 BTUIT/h | ≈ 0.293071 W | Imperial/US |
| BTU per hour | imperial ton of refrigerations | BTU per hour | imperial ton of refrigerations |
|---|---|---|---|
| 1 | ≈ 7.4404747548475E-5 | 6 | ≈ 0.00044642848529085 |
| 2 | ≈ 0.00014880949509695 | 7 | ≈ 0.00052083323283933 |
| 3 | ≈ 0.00022321424264543 | 8 | ≈ 0.0005952379803878 |
| 4 | ≈ 0.0002976189901939 | 9 | ≈ 0.00066964272793628 |
| 5 | ≈ 0.00037202373774238 | 10 | ≈ 0.00074404747548475 |
| imperial ton of refrigerations | BTU per hour |
|---|---|
| 1 | ≈ 13,440.0025932 |
| 7.4404747548475 × 10-5 | ≈ 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 …) |