Delisle to Réaumur (°De to ºRé) conversion calculator

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1°De = 79.46667ºRé

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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.

Delisle to Réaumur (°De to ºRé) formula

Delisle to Réaumur (°De to ºRé) formula

Réaumur = (Delisle - 150) / -1.87500001

1 Delisle to Réaumur calculation

Réaumur = (Delisle - 150) / -1.87500001

Réaumur = (1 - 150) / -1.875

Réaumur = -149 / -1.875

Réaumur = 79.46667

Réaumur to Delisle (ºRé to °De) (Swap units)

About Delisle

Developed by French astronomer Joseph-Nicolas Delisle, the Delisle scale was created in the early 18th century. It is a backwards scale that has decreasing values as the temperature rises.

The freezing point of water is 150 degrees and the boiling point is 0 degrees. To convert a temperature from Delisle to Celsius, you can use the formula: Celsius = (150 - Delisle) * 2/3.

In the 18th century the Delisle scale was widely used particularly in Russia but has since been forgotten and replaced by the Celsius scale.

About Réaumur

Réaumur was widely used in Europe in the past but is now rarely seen. The Réaumur scale was named after the French physicist René Antoine Ferchault de Réaumur who developed it in the early 18th century. The freezing point of water is 0°Ré and the boiling point 80°Ré. This scale 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.

 

 

Delisle to Réaumur table

Starting value
Increment
Accuracy
Delisle
Réaumur
0°De
80.00000ºRé
1°De
79.46667ºRé
2°De
78.93333ºRé
3°De
78.40000ºRé
4°De
77.86667ºRé
5°De
77.33333ºRé
6°De
76.80000ºRé
7°De
76.26667ºRé
8°De
75.73333ºRé
9°De
75.20000ºRé
10°De
74.66667ºRé
11°De
74.13333ºRé
12°De
73.60000ºRé
13°De
73.06667ºRé
14°De
72.53333ºRé
15°De
72.00000ºRé
16°De
71.46667ºRé
17°De
70.93333ºRé
18°De
70.40000ºRé
19°De
69.86667ºRé
Delisle
Réaumur
20°De
69.33333ºRé
21°De
68.80000ºRé
22°De
68.26667ºRé
23°De
67.73333ºRé
24°De
67.20000ºRé
25°De
66.66667ºRé
26°De
66.13333ºRé
27°De
65.60000ºRé
28°De
65.06667ºRé
29°De
64.53333ºRé
30°De
64.00000ºRé
31°De
63.46667ºRé
32°De
62.93333ºRé
33°De
62.40000ºRé
34°De
61.86667ºRé
35°De
61.33333ºRé
36°De
60.80000ºRé
37°De
60.26667ºRé
38°De
59.73333ºRé
39°De
59.20000ºRé
Delisle
Réaumur
40°De
58.66667ºRé
41°De
58.13333ºRé
42°De
57.60000ºRé
43°De
57.06667ºRé
44°De
56.53333ºRé
45°De
56.00000ºRé
46°De
55.46667ºRé
47°De
54.93333ºRé
48°De
54.40000ºRé
49°De
53.86667ºRé
50°De
53.33333ºRé
51°De
52.80000ºRé
52°De
52.26667ºRé
53°De
51.73333ºRé
54°De
51.20000ºRé
55°De
50.66667ºRé
56°De
50.13333ºRé
57°De
49.60000ºRé
58°De
49.06667ºRé
59°De
48.53333ºRé
Delisle
Réaumur
60°De
48.00000ºRé
61°De
47.46667ºRé
62°De
46.93333ºRé
63°De
46.40000ºRé
64°De
45.86667ºRé
65°De
45.33333ºRé
66°De
44.80000ºRé
67°De
44.26667ºRé
68°De
43.73333ºRé
69°De
43.20000ºRé
70°De
42.66667ºRé
71°De
42.13333ºRé
72°De
41.60000ºRé
73°De
41.06667ºRé
74°De
40.53333ºRé
75°De
40.00000ºRé
76°De
39.46667ºRé
77°De
38.93333ºRé
78°De
38.40000ºRé
79°De
37.86667ºRé