# Réaumur to Delisle (ºRé to °De)

## Réaumur to Delisle (ºRé to °De) conversion calculator

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

1ºRé = -98.125°De

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.

### Réaumur to Delisle (ºRé to °De) formula

Delisle = (Réaumur * 1.875) + -100

### Réaumur to Delisle calculation

Delisle = (Réaumur * 1.875) + -100

Delisle = (0 * 1.875) + -100

Delisle = 0 + -100

Delisle = -100

## 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.

## 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.

Starting value
Increment
Accuracy
Réaumur
Delisle
0ºRé
-100.00000°De
1ºRé
-98.12500°De
2ºRé
-96.25000°De
3ºRé
-94.37500°De
4ºRé
-92.50000°De
5ºRé
-90.62500°De
6ºRé
-88.75000°De
7ºRé
-86.87500°De
8ºRé
-85.00000°De
9ºRé
-83.12500°De
10ºRé
-81.25000°De
11ºRé
-79.37500°De
12ºRé
-77.50000°De
13ºRé
-75.62500°De
14ºRé
-73.75000°De
15ºRé
-71.87500°De
16ºRé
-70.00000°De
17ºRé
-68.12500°De
18ºRé
-66.25000°De
19ºRé
-64.37500°De
Réaumur
Delisle
20ºRé
-62.50000°De
21ºRé
-60.62500°De
22ºRé
-58.75000°De
23ºRé
-56.87500°De
24ºRé
-55.00000°De
25ºRé
-53.12500°De
26ºRé
-51.25000°De
27ºRé
-49.37500°De
28ºRé
-47.50000°De
29ºRé
-45.62500°De
30ºRé
-43.75000°De
31ºRé
-41.87500°De
32ºRé
-40.00000°De
33ºRé
-38.12500°De
34ºRé
-36.25000°De
35ºRé
-34.37500°De
36ºRé
-32.50000°De
37ºRé
-30.62500°De
38ºRé
-28.75000°De
39ºRé
-26.87500°De
Réaumur
Delisle
40ºRé
-25.00000°De
41ºRé
-23.12500°De
42ºRé
-21.25000°De
43ºRé
-19.37500°De
44ºRé
-17.50000°De
45ºRé
-15.62500°De
46ºRé
-13.75000°De
47ºRé
-11.87500°De
48ºRé
-10.00000°De
49ºRé
-8.12500°De
50ºRé
-6.25000°De
51ºRé
-4.37500°De
52ºRé
-2.50000°De
53ºRé
-0.62500°De
54ºRé
1.25000°De
55ºRé
3.12500°De
56ºRé
5.00000°De
57ºRé
6.87500°De
58ºRé
8.75000°De
59ºRé
10.62500°De
Réaumur
Delisle
60ºRé
12.50000°De
61ºRé
14.37500°De
62ºRé
16.25000°De
63ºRé
18.12500°De
64ºRé
20.00000°De
65ºRé
21.87500°De
66ºRé
23.75000°De
67ºRé
25.62500°De
68ºRé
27.50000°De
69ºRé
29.37500°De
70ºRé
31.25000°De
71ºRé
33.12500°De
72ºRé
35.00000°De
73ºRé
36.87500°De
74ºRé
38.75000°De
75ºRé
40.62500°De
76ºRé
42.50000°De
77ºRé
44.37500°De
78ºRé
46.25000°De
79ºRé
48.12500°De