degree Rømer | 1 °Rø | 2 °Rø | 3 °Rø | 4 °Rø | 5 °Rø | 6 °Rø | 7 °Rø | 8 °Rø | 9 °Rø | 10 °Rø | 11 °Rø | 12 °Rø | 13 °Rø | 14 °Rø | 15 °Rø | 16 °Rø | 17 °Rø | 18 °Rø | 19 °Rø | 20 °Rø | 21 °Rø | 22 °Rø | 23 °Rø | 24 °Rø | 25 °Rø | 26 °Rø | 27 °Rø | 28 °Rø | 29 °Rø | 30 °Rø | 31 °Rø | 32 °Rø | 33 °Rø | 34 °Rø | 35 °Rø | 36 °Rø | 37 °Rø | 38 °Rø | 39 °Rø | 40 °Rø | 41 °Rø | 42 °Rø | 43 °Rø | 44 °Rø | 45 °Rø | 46 °Rø | 47 °Rø | 48 °Rø | 49 °Rø | 50 °Rø | 51 °Rø | 52 °Rø | 53 °Rø | 54 °Rø | 55 °Rø | 56 °Rø | 57 °Rø | 58 °Rø | 59 °Rø | 60 °Rø | 61 °Rø | 62 °Rø | 63 °Rø | 64 °Rø | 65 °Rø | 66 °Rø | 67 °Rø | 68 °Rø | 69 °Rø | 70 °Rø | 71 °Rø | 72 °Rø | 73 °Rø | 74 °Rø | 75 °Rø | 76 °Rø | 77 °Rø | 78 °Rø | 79 °Rø | 80 °Rø | 81 °Rø | 82 °Rø | 83 °Rø | 84 °Rø | 85 °Rø | 86 °Rø | 87 °Rø | 88 °Rø | 89 °Rø | 90 °Rø | 91 °Rø | 92 °Rø | 93 °Rø | 94 °Rø | 95 °Rø | 96 °Rø | 97 °Rø | 98 °Rø | 99 °Rø | 100 °Rø |
degree Delisle | 168.5714286 °De | 165.7142857 °De | 162.8571429 °De | 160 °De | 157.1428571 °De | 154.2857143 °De | 151.4285714 °De | 148.5714286 °De | 145.7142857 °De | 142.8571429 °De | 140 °De | 137.1428571 °De | 134.2857143 °De | 131.4285714 °De | 128.5714286 °De | 125.7142857 °De | 122.8571429 °De | 120 °De | 117.1428571 °De | 114.2857143 °De | 111.4285714 °De | 108.5714286 °De | 105.7142857 °De | 102.8571429 °De | 100 °De | 97.1428571 °De | 94.2857143 °De | 91.4285714 °De | 88.5714286 °De | 85.7142857 °De | 82.8571429 °De | 80 °De | 77.1428571 °De | 74.2857143 °De | 71.4285714 °De | 68.5714286 °De | 65.7142857 °De | 62.8571429 °De | 60 °De | 57.1428571 °De | 54.2857143 °De | 51.4285714 °De | 48.5714286 °De | 45.7142857 °De | 42.8571429 °De | 40 °De | 37.1428571 °De | 34.2857143 °De | 31.4285714 °De | 28.5714286 °De | 25.7142857 °De | 22.8571429 °De | 20 °De | 17.1428571 °De | 14.2857143 °De | 11.4285714 °De | 8.5714286 °De | 5.7142857 °De | 2.8571429 °De | 0 °De | -2.8571429 °De | -5.7142857 °De | -8.5714286 °De | -11.4285714 °De | -14.2857143 °De | -17.1428571 °De | -20 °De | -22.8571429 °De | -25.7142857 °De | -28.5714286 °De | -31.4285714 °De | -34.2857143 °De | -37.1428571 °De | -40 °De | -42.8571429 °De | -45.7142857 °De | -48.5714286 °De | -51.4285714 °De | -54.2857143 °De | -57.1428571 °De | -60 °De | -62.8571429 °De | -65.7142857 °De | -68.5714286 °De | -71.4285714 °De | -74.2857143 °De | -77.1428571 °De | -80 °De | -82.8571429 °De | -85.7142857 °De | -88.5714286 °De | -91.4285714 °De | -94.2857143 °De | -97.1428571 °De | -100 °De | -102.8571429 °De | -105.7142857 °De | -108.5714286 °De | -111.4285714 °De | -114.2857143 °De |
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 Delisle | degrees Rømer | degrees Delisle |
---|---|---|---|
1 | = 168.57142857143 | 6 | = 154.28571428571 |
2 | = 165.71428571429 | 7 | = 151.42857142857 |
3 | = 162.85714285714 | 8 | = 148.57142857143 |
4 | = 160 | 9 | = 145.71428571429 |
5 | = 157.14285714286 | 10 | = 142.85714285714 |
The Delisle scale (°D) is a temperature scale invented in 1732 by the French astronomer Joseph-Nicolas Delisle (1688–1768).
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
degree Delisle | °De | [K] = 373.15 − [°De] × 2⁄3 | = 373.15 − [°De] × 2⁄3 | Metric system SI |
degrees Delisle | degrees Rømer | degrees Delisle | degrees Rømer |
---|---|---|---|
1 | = 59.65 | 6 | = 57.9 |
2 | = 59.3 | 7 | = 57.55 |
3 | = 58.95 | 8 | = 57.2 |
4 | = 58.6 | 9 | = 56.85 |
5 | = 58.25 | 10 | = 56.5 |
degrees Rømer | degrees Delisle |
---|---|
1 | = 168.5714286 |
59.65 | = 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 …) |