Réaumur to Fahrenheit

Réaumur (°Ré): The Réaumur scale has the freezing point of water at 0 °Ré and the boiling point at 80 °Ré. It was popular in parts of Europe in the 18th and 19th centuries, particularly in France and Germany.

Fahrenheit (°F): The Fahrenheit scale is primarily used in the United States and a few other countries. It defines the freezing point of water at 32 °F and the boiling point at 212 °F, separating the two points by 180 degrees.