Newton to Réaumur (°N to °Ré) Converter
1 Newton equals 2.4242 Réaumur (1 °N = 2.4242 °Ré). Convert Newton to Réaumur with formula, table, and examples.
To convert Newton to Reaumur, use the formula: Re = N x 80/33. The Newton scale is Isaac Newton's rarely-used temperature scale, while the Reaumur scale is the historical European scale once standard in France and Germany. Water freezes at 0 degrees N (0 Re) and boils at 33 degrees N (80 Re).
How to Convert Newton to Réaumur
- Convert to Kelvin: K = °N * 100 / 33 + 273.15
- Convert to Réaumur: °Ré = (K - 273.15) * 4 / 5
- Read the result in Réaumur
Good to Know About Newton to Réaumur Conversion
The history of temperature measurement is the history of scientific collaboration and competition across borders. The Newton scale (barely adopted beyond his laboratory) and the Reaumur scale (once widespread in continental Europe) represent different national contributions to solving the same fundamental problem: how to assign numbers to the sensation of hot and cold.
Newton to Réaumur: What You Need to Know
The Newton scale was created by Isaac Newton, around 1700, barely adopted beyond his laboratory. The Reaumur scale was created by Rene Antoine Ferchault de Reaumur, 1730, once widespread in continental Europe. Converting between them bridges different eras and different measurement philosophies in the history of thermometry.
What is a Newton? °N
A temperature scale devised by Isaac Newton around 1700. Water freezes at 0 °N and boils at 33 °N. Not to be confused with the newton unit of force.
Learn more about Newton →What is a Réaumur? °Ré
A historical temperature scale where water freezes at 0 °Ré and boils at 80 °Ré. Named after René Antoine Ferchault de Réaumur. Once widely used in Europe.
Learn more about Réaumur →Going the other way? Use our Réaumur to Newton converter.
Newton to Réaumur FAQ
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Use the formula Re = N x 80/33. At the freezing point of water: 0 N = 0 Re. At the boiling point: 33 N = 80 Re.
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This conversion is needed when interpreting historical scientific records, comparing temperature data across different measurement traditions, or completing engineering calculations that mix temperature scales from different national standards.
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Water freezes at 0 N = 0 Re. Water boils at 33 N = 80 Re. These two fixed points anchor both scales and provide easy verification of any conversion calculation.
Non-Frequently Asked Questions About Newton to Réaumur
Questions nobody should ask - but someone did.
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If obsolete temperature scales had a reunion dinner, Newton and Reaumur would sit at the same table as the ones who almost made it. Reaumur had a century of European use; Newton barely had a decade of personal use. Both were outcompeted by Celsius, who took the best features of each (water reference points, simple numbers) and built the winning scale.
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The factor 80/33 (approximately 2.424) has no special mathematical significance. It is simply the ratio of two arbitrary boiling-point numbers chosen by two scientists who never coordinated. If Newton had chosen 40 and Reaumur had chosen 80, the factor would be a clean 2. Close, but the universe does not optimize for tidy conversion factors.
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A well-designed exhibit showing Newton, Reaumur, Delisle, and Romer scales alongside surviving thermometers from each tradition could be genuinely fascinating. The history of how humanity learned to measure heat - from Newton's linseed oil experiments to modern infrared sensors - is a story of ingenuity, competition, and the eventual triumph of standardization over individuality.
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Need the reverse? Use our Réaumur to Newton converter. See all Temperature converters.