Celsius to Réaumur (°C to ºRé)

Réaumur to Celsius (Swap Units)

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Celsius to Réaumur formula

ºRé =
°C * 0.80000
 
 
 
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More information: Celsius

Celsius

Although initially defined by the freezing point of water (and later the melting point of ice), the Celsius scale is now officially a derived scale, defined in relation to the Kelvin temperature scale.

Zero on the Celsius scale (0°C) is now defined as the equivalent to 273.15K, with a temperature difference of 1 deg C equivalent to a difference of 1K, meaning the unit size in each scale is the same. This means that 100°C, previously defined as the boiling point of water, is now defined as the equivalent to 373.15K.

The Celsius scale is an interval system but not a ratio system, meaning it follows a relative scale but not an absolute scale. This can be seen because the temperature interval between 20°C and 30°C is the same as between 30°C and 40°C, but 40°C does not have twice the air heat energy of 20°C.

A temperature difference of 1 deg C is the equivalent of a temperature difference 1.8°F.

 

Celsius to Réaumur formula

ºRé =
°C * 0.80000
 
 
 

Réaumur

The Réaumur scale also known as the "octogesimal division", is a temperature scale in which the freezing and boiling points of water are set to 0 and 80 degrees respectively. The scale is named after René Antoine Ferchault de Réaumur, who first proposed something similar in 1730.

 

Celsius to Réaumur table

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Celsius Réaumur
0°C 0.00ºRé
1°C 0.80ºRé
2°C 1.60ºRé
3°C 2.40ºRé
4°C 3.20ºRé
5°C 4.00ºRé
6°C 4.80ºRé
7°C 5.60ºRé
8°C 6.40ºRé
9°C 7.20ºRé
10°C 8.00ºRé
11°C 8.80ºRé
12°C 9.60ºRé
13°C 10.40ºRé
14°C 11.20ºRé
15°C 12.00ºRé
16°C 12.80ºRé
17°C 13.60ºRé
18°C 14.40ºRé
19°C 15.20ºRé
Celsius Réaumur
20°C 16.00ºRé
21°C 16.80ºRé
22°C 17.60ºRé
23°C 18.40ºRé
24°C 19.20ºRé
25°C 20.00ºRé
26°C 20.80ºRé
27°C 21.60ºRé
28°C 22.40ºRé
29°C 23.20ºRé
30°C 24.00ºRé
31°C 24.80ºRé
32°C 25.60ºRé
33°C 26.40ºRé
34°C 27.20ºRé
35°C 28.00ºRé
36°C 28.80ºRé
37°C 29.60ºRé
38°C 30.40ºRé
39°C 31.20ºRé
Celsius Réaumur
40°C 32.00ºRé
41°C 32.80ºRé
42°C 33.60ºRé
43°C 34.40ºRé
44°C 35.20ºRé
45°C 36.00ºRé
46°C 36.80ºRé
47°C 37.60ºRé
48°C 38.40ºRé
49°C 39.20ºRé
50°C 40.00ºRé
51°C 40.80ºRé
52°C 41.60ºRé
53°C 42.40ºRé
54°C 43.20ºRé
55°C 44.00ºRé
56°C 44.80ºRé
57°C 45.60ºRé
58°C 46.40ºRé
59°C 47.20ºRé