Celsius to Réaumur (°C to ºRé) conversion calculator

→

100°C = 80ºRé

Click here for a conversion table >>

Note: You can increase or decrease the accuracy of this answer by selecting the number of significant figures required from the options above the result.

Celsius to Réaumur (ºC to ºRé) formula

Celsius to Réaumur (ºC to ºRé) formula

Réaumur = Celsius / 1.25

100 Celsius to Réaumur calculation

Réaumur = Celsius / 1.25

Réaumur = 100 / 1.25

Réaumur = 80

Réaumur to Celsius (ºRé to °C) (Swap units)

About Celsius

Celsius is the most commonly used temperature scale in the world. The Celsius scale (known as the centigrade in some instances) is named after the Swedish astronomer Anders Celsius. It is based on the freezing and boiling points of water at standard atmospheric pressure making 0°C the freezing point and 100°C the boiling point.

The Celsius scale is normally found in weather forecasts, household temperatures and cooking in most countries with the notable exception of the United States.

About Réaumur

The Réaumur scale (°Ré) was devised by the French physicist René Antoine Ferchault de Réaumur in 1730, with water freezing at 0°Ré and boiling at 80°Ré. It was widely used in Europe but has been almost completely replaced by the Celsius scale.

Despite the Réaumur scale no longer being used, it had a significant impact in the history of temperature measurement.

 

 

Celsius to Réaumur table

Starting value
Increment
Accuracy
Celsius
Réaumur
0°C
0.00000ºRé
1°C
0.80000ºRé
2°C
1.60000ºRé
3°C
2.40000ºRé
4°C
3.20000ºRé
5°C
4.00000ºRé
6°C
4.80000ºRé
7°C
5.60000ºRé
8°C
6.40000ºRé
9°C
7.20000ºRé
10°C
8.00000ºRé
11°C
8.80000ºRé
12°C
9.60000ºRé
13°C
10.40000ºRé
14°C
11.20000ºRé
15°C
12.00000ºRé
16°C
12.80000ºRé
17°C
13.60000ºRé
18°C
14.40000ºRé
19°C
15.20000ºRé
Celsius
Réaumur
20°C
16.00000ºRé
21°C
16.80000ºRé
22°C
17.60000ºRé
23°C
18.40000ºRé
24°C
19.20000ºRé
25°C
20.00000ºRé
26°C
20.80000ºRé
27°C
21.60000ºRé
28°C
22.40000ºRé
29°C
23.20000ºRé
30°C
24.00000ºRé
31°C
24.80000ºRé
32°C
25.60000ºRé
33°C
26.40000ºRé
34°C
27.20000ºRé
35°C
28.00000ºRé
36°C
28.80000ºRé
37°C
29.60000ºRé
38°C
30.40000ºRé
39°C
31.20000ºRé
Celsius
Réaumur
40°C
32.00000ºRé
41°C
32.80000ºRé
42°C
33.60000ºRé
43°C
34.40000ºRé
44°C
35.20000ºRé
45°C
36.00000ºRé
46°C
36.80000ºRé
47°C
37.60000ºRé
48°C
38.40000ºRé
49°C
39.20000ºRé
50°C
40.00000ºRé
51°C
40.80000ºRé
52°C
41.60000ºRé
53°C
42.40000ºRé
54°C
43.20000ºRé
55°C
44.00000ºRé
56°C
44.80000ºRé
57°C
45.60000ºRé
58°C
46.40000ºRé
59°C
47.20000ºRé
Celsius
Réaumur
60°C
48.00000ºRé
61°C
48.80000ºRé
62°C
49.60000ºRé
63°C
50.40000ºRé
64°C
51.20000ºRé
65°C
52.00000ºRé
66°C
52.80000ºRé
67°C
53.60000ºRé
68°C
54.40000ºRé
69°C
55.20000ºRé
70°C
56.00000ºRé
71°C
56.80000ºRé
72°C
57.60000ºRé
73°C
58.40000ºRé
74°C
59.20000ºRé
75°C
60.00000ºRé
76°C
60.80000ºRé
77°C
61.60000ºRé
78°C
62.40000ºRé
79°C
63.20000ºRé