The Rankine and Rømer scales are both absolute temperature scales, meaning they begin at absolute zero, the point where all molecular motion ceases. While less common than Celsius or Kelvin, understanding their conversions can be valuable in certain scientific and engineering applications.
The Rankine scale, named after Scottish engineer William John Macquorn Rankine, is an absolute temperature scale where zero degrees Rankine (0 °R) corresponds to absolute zero. One degree Rankine is equal to one degree Fahrenheit.
The Rømer scale, developed by Danish astronomer Ole Rømer in 1701, is an older historical scale. It is also an absolute scale, but its zero point is based on a different set of reference points. On the Rømer scale, the freezing point of brine (a mixture of salt and water) is 0°Rø, and the boiling point of water is 60°Rø.
To convert Rankine to Rømer, you'll need to first convert Rankine to Fahrenheit and then Fahrenheit to Rømer. Here's the breakdown:
Fahrenheit (°F) = Rankine (°R) - 459.67
Rømer (°Rø) = (Fahrenheit (°F) + 32) * (7/24)
Rankine | Rømer | Rankine | Rømer | Rankine | Rømer | Rankine | Rømer |
---|---|---|---|---|---|---|---|
1°R | -135.61°Rø | 21°R | -129.78°Rø | 41°R | -123.95°Rø | 61°R | -118.11°Rø |
2°R | -135.32°Rø | 22°R | -129.49°Rø | 42°R | -123.65°Rø | 62°R | -117.82°Rø |
3°R | -135.03°Rø | 23°R | -129.20Rø | 43°R | -123.36°Rø | 63°R | -117.53°Rø |
4°R | -134.74°Rø | 24°R | -128.90°Rø | 44R | -123.07°Rø | 64°R | -117.24°Rø |
5°R | -134.45°Rø | 25°R | -128.61°Rø | 45°R | -122.78°Rø | 65°R | -116.95°Rø |
6°R | -134.15°R | 26°R | -128.32°Rø | 46°R | -122.49°Rø | 66°R | -116.65°Rø |
7°R | -133.86°Rø | 27°R | -128.03°Rø | 47°R | -122.20°Rø | 67°R | -116.36°Rø |
8°R | -133.57°Rø | 28°R | -127.74°Rø | 48°R | -121.90°Rø | 68°R | -116.07°Rø |
9°R | -133.28°Rø | 29°R | -127.45°Rø | 49°R | -121.61°Rø | 69°R | -115.78°Rø |
10°R | -132.99°Rø | 30°R | -127.15°R | 50°R | -121.32°Rø | 70°R | -115.49°Rø |
11R | -132.70°Rø | 31°R | -126.86°Rø | 51°R | -121.03°Rø | 71°R | -115.20Rø |
12°R | -132.40°Rø | 32°R | -126.57°Rø | 52°R | -120.74°Rø | 72°R | -114.90°Rø |
13°R | -132.11°R | 33°R | -126.28°Rø | 53°R | -120.45°Rø | 73°R | -114.61°Rø |
14°R | -131.82°Rø | 34°R | -125.99°Rø | 54°R | -120.15Rø | 74°R | -114.32°Rø |
15°R | -131.53°Rø | 35°R | -125.70°Rø | 55°R | -119.86°Rø | 75°R | -114.03°Rø |
16°R | -131.24°Rø | 36°R | -125.40°Rø | 56°R | -119.57°Rø | 76°R | -113.74°Rø |
17°R | -130.95°Rø | 37°R | -125.11Rø | 57°R | -119.28°Rø | 77°R | -113.45°Rø |
18°R | -130.65°Rø | 38°R | -124.82°Rø | 58°R | -118.99°Rø | 78°R | -113.15°Rø |
19°R | -130.36°Rø | 39°R | -124.53°Rø | 59°R | -118.70°Rø | 79°R | -112.86°Rø |
20°R | -130.07Rø | 40°R | -124.24°Rø | 60°R | -118.40°Rø | 80°R | -112.57°Rø |