Convert Réaumur to Newton

Convert Réaumur (°Ré) to Newton (°N) instantly and accurately.

Conversion Formula

°N = °Ré × 33/80

About Réaumur

Réaumur (°Ré) was developed by French scientist René Antoine Ferchault de Réaumur in 1730 and was widely used across Europe until the 19th century. The scale sets water's freezing point at 0°Ré and boiling point at 80°Ré, creating a more compressed scale than Celsius. While largely obsolete today, it's still occasionally used in specific industries like cheese-making, brewing, and candy production in some European countries. For perspective: room temperature is about 16°Ré, body temperature is roughly 30°Ré, and a hot summer day reaches 32°Ré. The conversion is straightforward: °Ré = °C × 4/5.

About Newton

Newton (°N) was devised by Isaac Newton around 1700 and published anonymously in 1701. The scale places water's freezing point at 0°N and boiling point at 33°N - a choice that allowed body temperature to fall at approximately 12°N. Newton used linseed oil as the thermometric fluid and described his scale in the Philosophical Transactions of the Royal Society. Although never widely adopted, it is historically significant as one of the earliest systematic temperature scales and directly inspired Ole Rømer, who visited Newton, and later Daniel Gabriel Fahrenheit, who built upon Rømer's work.

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