Rømer scale
The Rømer scale (Danish pronunciation: [ˈʁœˀmɐ]; notated as °Rø), also known as Romer or Roemer, is a temperature scale named after the Danish astronomer Ole Christensen Rømer, who developed for his own use in around 1702. It is based on the freezing point of pure water being 7.5 degrees and the boiling point of water as 60 degrees.: 365
| from Rømer | to Rømer | |
|---|---|---|
| Celsius | x °Rø ≘ (x − 7.5) × 40/21 °C | x °C ≘ (x × 21/40 + 7.5) °Rø |
| Fahrenheit | x °Rø ≘ ((x − 7.5) × 24/7 + 32) °F | x °F ≘ ((x − 32) × 7/24 + 7.5) °Rø |
| Kelvin | x °Rø ≘ ((x − 7.5) × 40/21 + 273.15) K | x K ≘ ((x − 273.15) × 21/40 + 7.5) °Rø |
| Rankine | x °Rø ≘ ((x − 7.5) × 24/7 + 491.67) °R | x °R ≘ ((x − 491.67) × 7/24 + 7.5) °Rø |
| For temperature intervals rather than specific temperatures, 1 °Rø = 40/21 °C = 24/7 °F Conversion between temperature scales | ||
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