Réaumur to Celsius calculator

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How to use it?

To use the calculator, place your cursor in the desired unit field and write a number.The calculator will automatically convert your number and display the result in the other unit fields. If needed use the dot "." as the decimal separator.

Rounding: 
°R
°C

Réaumur to Celsius formula

Celsius to Réaumur formula

Réaumur
Réaumur

The Réaumur scale (°Ré, °Re, °r), also known as the "octogesimal division", is a temperature scale for which the freezing and boiling points of water are defined as 0 and 80 degrees respectively. The scale is named for René Antoine Ferchault de Réaumur, who first proposed a similar scale in 1730. Réaumur’s thermometer contained diluted alcohol (ethanol) and was constructed on the principle of using 0° for the freezing temperature of water, and graduating the tube into degrees, each of which was one-thousandth of the volume contained by the bulb and tube up to the zero mark.

Source: Wikipedia

Celsius
Celsius

The Celsius scale, previously known as the centigrade scale, is a temperature scale used by the International System of Units (SI). As an SI derived unit, it is used by all countries except the United States and Liberia. It is named after the Swedish astronomer Anders Celsius (1701–1744), who developed a similar temperature scale.

Source: Wikipedia


Réaumur to Celsius Conversion Table

Below you can generate and download as CSV, Excel, PDF or print the Réaumur to Celsius conversion table based on your needs.

Selected rounding: none (You can change it above in the dropdown)

From:
To:
Increment:
°R °C °R °C °R °C °R °C
1 1.25 26 32.5 51 63.75 76 95
2 2.5 27 33.75 52 65 77 96.25
3 3.75 28 35 53 66.25 78 97.5
4 5 29 36.25 54 67.5 79 98.75
5 6.25 30 37.5 55 68.75 80 100
6 7.5 31 38.75 56 70 81 101.25
7 8.75 32 40 57 71.25 82 102.5
8 10 33 41.25 58 72.5 83 103.75
9 11.25 34 42.5 59 73.75 84 105
10 12.5 35 43.75 60 75 85 106.25
11 13.75 36 45 61 76.25 86 107.5
12 15 37 46.25 62 77.5 87 108.75
13 16.25 38 47.5 63 78.75 88 110
14 17.5 39 48.75 64 80 89 111.25
15 18.75 40 50 65 81.25 90 112.5
16 20 41 51.25 66 82.5 91 113.75
17 21.25 42 52.5 67 83.75 92 115
18 22.5 43 53.75 68 85 93 116.25
19 23.75 44 55 69 86.25 94 117.5
20 25 45 56.25 70 87.5 95 118.75
21 26.25 46 57.5 71 88.75 96 120
22 27.5 47 58.75 72 90 97 121.25
23 28.75 48 60 73 91.25 98 122.5
24 30 49 61.25 74 92.5 99 123.75
25 31.25 50 62.5 75 93.75 100 125

  • Réaumur (1.25 °C)
    The Réaumur scale (°Ré, °Re, °r), also known as the "octogesimal division", is a temperature scale for which the freezing and boiling points of water are defined as 0 and 80 degrees respectively. The scale is named for René Antoine Ferchault de Réaumur, who first proposed a similar scale in 1730.
  • Celsius (1 °C)
    The Celsius scale, previously known as the centigrade scale, is a temperature scale used by the International System of Units (SI). As an SI derived unit, it is used by all countries except the United States and Liberia. It is named after the Swedish astronomer Anders Celsius (1701–1744), who developed a similar temperature scale. The degree Celsius (symbol: °C) can refer to a specific temperature on the Celsius scale or a unit to indicate a difference between two temperatures or an uncertainty. Before being renamed to honor Anders Celsius in 1948, the unit was called centigrade, from the Latin centum, which means 100, and gradus, which means steps.
Tags Réaumur to Celsius °R to °C Réaumur °R Celsius °C converter calculator conversion table

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