What is degree Réaumur?

Degree Réaumur is a historical temperature scale where water freezes at 0° and boils at 80°. While largely obsolete, it was widely used in European science and medicine before the widespread adoption of Celsius.

What is degree Fahrenheit?

Degree Fahrenheit is a temperature unit primarily used in the United States for weather reports, cooking temperatures, and household settings. Water freezes at 32 °F and boils at 212 °F on this scale.

Worked examples

1 degree Réaumur = -458.67 degree Fahrenheit

1 degree Fahrenheit = 0.55555556 kelvin