Réaumur to Fahrenheit: A Comprehensive Guide

The Réaumur scale, while historically significant, has largely been replaced by more widely used scales like Celsius and Fahrenheit. However, understanding how to convert between Raumur and Fahrenheit can be valuable for various purposes, including historical research and scientific data analysis.

Understanding the Scales

Réaumur Scale: Developed by René Antoine Ferchault de Réaumur, this scale defines the freezing point of water as 0°R and the boiling point as 80°R.

Fahrenheit Scale: Invented by Daniel Gabriel Fahrenheit, this scale is still commonly used in the United States. On the Fahrenheit scale, water freezes at 32°F and boils at 212F.

The Conversion Formula

The formula for converting Réaumur to Fahrenheit is:

**Fahrenheit (°F) = (Réaumur (°R) * 9/4) + 32**

Easy Conversion with Our Calculator

To simplify the process, we've developed an easy-to-use online calculator:

Réaumur to Fahrenheit Converter

Simply enter the temperature in Réaumur degrees (°R) into the calculator, and it will instantly provide the equivalent temperature in Fahrenheit degrees (°F).

Example Conversion

Let's convert 20°R to Fahrenheit:

  1. Enter "20" into the calculator.
  2. Click "Calculate" or press "Enter."
  3. The calculator will display the result in Fahrenheit degrees.
Réaumur Fahrenheit Réaumur Fahrenheit Réaumur Fahrenheit Réaumur Fahrenheit
1ºRé34.25°F21ºRé79.25°F41Ré124.25°F61ºRé169.25°F
2ºRé36.50°F22ºRé81.50°F42ºRé126.50°F62ºRé171.50F
3ºRé38.75°F23ºRé83.75°F43ºRé128.75°F63ºRé173.75°F
4Ré41.00°F24ºRé86.00F44ºRé131.00°F64ºRé176.00°F
5ºRé43.25°F25ºRé88.25°F45ºRé133.25°F65ºRé178.25°F
6ºRé45.50°F26ºRé90.50°F46ºRé135.50°F66ºRé180.50°F
7ºRé47.75°F27ºRé92.75°F47ºRé137.75°F67ºRé182.75°F
8ºRé50.00°F28ºRé95.00°F48ºRé140.00°F68Ré185.00°F
9ºRé52.25°F29ºRé97.25°F49ºRé142.25°F69ºRé187.25°F
10ºRé54.50°F30ºRé99.50°F50ºRé144.50°F70ºR189.50°F
11ºRé56.75°F31ºRé101.75°F51ºRé146.75°F71ºR191.75°F
12ºRé59.00°F32ºRé104.00°F52ºRé149.00°F72ºR194.00°F
13ºRé61.25°F33ºRé106.25°F53ºRé151.25°F73ºR196.25°F
14ºRé63.50°F34ºRé108.50°F54ºRé153.50°F74ºR198.50°F
15ºRé65.75°F35ºRé110.75°F55ºRé155.75°F75ºR200.75°F
16ºRé68.00°F36ºRé113.00°F56ºRé158.00°F76ºR203.00°F
17ºRé70.25°F37ºRé115.25°F57ºRé160.25°F77ºR205.25°F
18ºRé72.50°F38ºRé117.50°F58ºRé162.50°F78ºR207.50°F
19ºRé74.75°F39ºRé119.75°F59ºRé164.75°F79ºR209.75°F
20ºRé77.00°F40ºRé122.00°F60ºRé167.00°F80ºR212.00°F