Convert Reaumur to Celsius
Please provide values below to convert Reaumur [°r] to Celsius [°C], or Convert Celsius to Reaumur.
How to Convert Reaumur to Celsius
The conversion between Reaumur and Celsius is not linear or involves a specific formula. Please use the calculator above for an accurate conversion.
To convert from Reaumur to the base unit, the formula is: y = Reaumur * (4/5) + 273.15
To convert from the base unit to Celsius, the formula is: y = base_unit_value - 273.15
Reaumur to Celsius Conversion Table
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Reaumur
The Reaumur is a temperature scale where 0°r is the freezing point of water and 80°r is the boiling point under standard conditions.
History/Origin
Developed by René Antoine Ferchault de Réaumur in 1730, it was widely used in Europe for scientific and industrial purposes before being largely replaced by Celsius and Fahrenheit scales.
Current Use
The Reaumur scale is now rarely used, primarily in some regions of France and historical contexts, with most temperature measurements adopting Celsius or Fahrenheit.
Celsius
Celsius (°C) is a unit of temperature measurement where 0°C is the freezing point of water and 100°C is the boiling point at standard atmospheric pressure.
History/Origin
The Celsius scale was developed by Anders Celsius in 1742, originally with 0°C as the boiling point of water and 100°C as the freezing point, later reversed to its current form.
Current Use
Celsius is widely used worldwide for everyday temperature measurements, scientific research, and weather reporting, especially in most countries outside the United States.