| degree Rankine | 1 °R | 2 °R | 3 °R | 4 °R | 5 °R | 6 °R | 7 °R | 8 °R | 9 °R | 10 °R | 11 °R | 12 °R | 13 °R | 14 °R | 15 °R | 16 °R | 17 °R | 18 °R | 19 °R | 20 °R | 21 °R | 22 °R | 23 °R | 24 °R | 25 °R | 26 °R | 27 °R | 28 °R | 29 °R | 30 °R | 31 °R | 32 °R | 33 °R | 34 °R | 35 °R | 36 °R | 37 °R | 38 °R | 39 °R | 40 °R | 41 °R | 42 °R | 43 °R | 44 °R | 45 °R | 46 °R | 47 °R | 48 °R | 49 °R | 50 °R | 51 °R | 52 °R | 53 °R | 54 °R | 55 °R | 56 °R | 57 °R | 58 °R | 59 °R | 60 °R | 61 °R | 62 °R | 63 °R | 64 °R | 65 °R | 66 °R | 67 °R | 68 °R | 69 °R | 70 °R | 71 °R | 72 °R | 73 °R | 74 °R | 75 °R | 76 °R | 77 °R | 78 °R | 79 °R | 80 °R | 81 °R | 82 °R | 83 °R | 84 °R | 85 °R | 86 °R | 87 °R | 88 °R | 89 °R | 90 °R | 91 °R | 92 °R | 93 °R | 94 °R | 95 °R | 96 °R | 97 °R | 98 °R | 99 °R | 100 °R |
| degree Rømer | -135.6120833 °Rø | -135.3204167 °Rø | -135.02875 °Rø | -134.7370833 °Rø | -134.4454167 °Rø | -134.15375 °Rø | -133.8620833 °Rø | -133.5704167 °Rø | -133.27875 °Rø | -132.9870833 °Rø | -132.6954167 °Rø | -132.40375 °Rø | -132.1120833 °Rø | -131.8204167 °Rø | -131.52875 °Rø | -131.2370833 °Rø | -130.9454167 °Rø | -130.65375 °Rø | -130.3620833 °Rø | -130.0704167 °Rø | -129.77875 °Rø | -129.4870833 °Rø | -129.1954167 °Rø | -128.90375 °Rø | -128.6120833 °Rø | -128.3204167 °Rø | -128.02875 °Rø | -127.7370833 °Rø | -127.4454167 °Rø | -127.15375 °Rø | -126.8620833 °Rø | -126.5704167 °Rø | -126.27875 °Rø | -125.9870833 °Rø | -125.6954167 °Rø | -125.40375 °Rø | -125.1120833 °Rø | -124.8204167 °Rø | -124.52875 °Rø | -124.2370833 °Rø | -123.9454167 °Rø | -123.65375 °Rø | -123.3620833 °Rø | -123.0704167 °Rø | -122.77875 °Rø | -122.4870833 °Rø | -122.1954167 °Rø | -121.90375 °Rø | -121.6120833 °Rø | -121.3204167 °Rø | -121.02875 °Rø | -120.7370833 °Rø | -120.4454167 °Rø | -120.15375 °Rø | -119.8620833 °Rø | -119.5704167 °Rø | -119.27875 °Rø | -118.9870833 °Rø | -118.6954167 °Rø | -118.40375 °Rø | -118.1120833 °Rø | -117.8204167 °Rø | -117.52875 °Rø | -117.2370833 °Rø | -116.9454167 °Rø | -116.65375 °Rø | -116.3620833 °Rø | -116.0704167 °Rø | -115.77875 °Rø | -115.4870833 °Rø | -115.1954167 °Rø | -114.90375 °Rø | -114.6120833 °Rø | -114.3204167 °Rø | -114.02875 °Rø | -113.7370833 °Rø | -113.4454167 °Rø | -113.15375 °Rø | -112.8620833 °Rø | -112.5704167 °Rø | -112.27875 °Rø | -111.9870833 °Rø | -111.6954167 °Rø | -111.40375 °Rø | -111.1120833 °Rø | -110.8204167 °Rø | -110.52875 °Rø | -110.2370833 °Rø | -109.9454167 °Rø | -109.65375 °Rø | -109.3620833 °Rø | -109.0704167 °Rø | -108.77875 °Rø | -108.4870833 °Rø | -108.1954167 °Rø | -107.90375 °Rø | -107.6120833 °Rø | -107.3204167 °Rø | -107.02875 °Rø | -106.7370833 °Rø |
The degrees Rankine is the unit of temperature.The symbol for degrees Rankine is °R (or °Ra if necessary to distinguish it from the Rømer and Réaumur scales).
| Name of unit | Symbol | Definition | Relation to SI units | Unit System |
|---|---|---|---|---|
| degree Rankine | °R | [°R] ≡ [K] × 9⁄5 | [K] ≡ [°R] × 5/9 | Metric system SI |
| degrees Rankine | degrees Rømer | degrees Rankine | degrees Rømer |
|---|---|---|---|
| 1 | = -135.61208333333 | 6 | = -134.15375 |
| 2 | = -135.32041666667 | 7 | = -133.86208333333 |
| 3 | = -135.02875 | 8 | = -133.57041666667 |
| 4 | = -134.73708333333 | 9 | = -133.27875 |
| 5 | = -134.44541666667 | 10 | = -132.98708333333 |
The Rømer scale (Danish pronunciation: [ˈʁœːˀmɐ]; also Roemer) is a temperature scale named after the Danish astronomer Ole Christensen Rømer, who proposed it in 1701. It is based on the freezing point of pure water being 7.5 degrees and the boiling point of water as 60 degrees.
| Name of unit | Symbol | Definition | Relation to SI units | Unit System |
|---|---|---|---|---|
| degree Rømer | °Rø | [K] = ([°Rø] − 7.5) × 40⁄21 + 273.15 | Metric system SI |
| degrees Rømer | degrees Rankine | degrees Rømer | degrees Rankine |
|---|---|---|---|
| 1 | = 469.38428571429 | 6 | = 486.52714285714 |
| 2 | = 472.81285714286 | 7 | = 489.95571428571 |
| 3 | = 476.24142857143 | 8 | = 493.38428571429 |
| 4 | = 479.67 | 9 | = 496.81285714286 |
| 5 | = 483.09857142857 | 10 | = 500.24142857143 |
| degrees Rankine | degrees Rømer |
|---|---|
| 1 | = -135.6120833 |
| 469.3842857 | = 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 …) |