# Rømer to Delisle (°Rø to °De)

## Rømer to Delisle (°Rø to °De) conversion calculator

Delisle to Rømer (°De to °Rø) (Swap units)

1°Rø = -118.57143°De

Accuracy

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.

### Rømer to Delisle (°Rø to °De) formula

Delisle = ((Rømer - 7.5) * 2.85714286) + -100

### Rømer to Delisle calculation

Delisle = ((Rømer - 7.5) * 2.85714286) + -100

Delisle = ((1 - 7.5) * 2.8571428571429) + -100

Delisle = (-7.5 * 2.8571428571429) + -100

Delisle = -21.428571428571 + -100

Delisle = -121.42857

Ole Rømer made significant contributions to the field of temperature measurement.

He was a Danish astronomer known for his work in the late 17th century. The Rømer scale (also known as the Danish scale) was based on the freezing and boiling points of water as many temperature scales are. Rømer's scale used the freezing and boiling reference points as 0 degrees and 60 degrees respectively. While the Rømer scale is no longer used it played a role as an early precursor to the Celsius scale.

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
Rømer
Delisle
0°Rø
-121.42857°De
1°Rø
-118.57143°De
2°Rø
-115.71429°De
3°Rø
-112.85714°De
4°Rø
-110.00000°De
5°Rø
-107.14286°De
6°Rø
-104.28571°De
7°Rø
-101.42857°De
8°Rø
-98.57143°De
9°Rø
-95.71429°De
10°Rø
-92.85714°De
11°Rø
-90.00000°De
12°Rø
-87.14286°De
13°Rø
-84.28571°De
14°Rø
-81.42857°De
15°Rø
-78.57143°De
16°Rø
-75.71429°De
17°Rø
-72.85714°De
18°Rø
-70.00000°De
19°Rø
-67.14286°De
Rømer
Delisle
20°Rø
-64.28571°De
21°Rø
-61.42857°De
22°Rø
-58.57143°De
23°Rø
-55.71429°De
24°Rø
-52.85714°De
25°Rø
-50.00000°De
26°Rø
-47.14286°De
27°Rø
-44.28571°De
28°Rø
-41.42857°De
29°Rø
-38.57143°De
30°Rø
-35.71429°De
31°Rø
-32.85714°De
32°Rø
-30.00000°De
33°Rø
-27.14286°De
34°Rø
-24.28571°De
35°Rø
-21.42857°De
36°Rø
-18.57143°De
37°Rø
-15.71429°De
38°Rø
-12.85714°De
39°Rø
-10.00000°De
Rømer
Delisle
40°Rø
-7.14286°De
41°Rø
-4.28571°De
42°Rø
-1.42857°De
43°Rø
1.42857°De
44°Rø
4.28571°De
45°Rø
7.14286°De
46°Rø
10.00000°De
47°Rø
12.85714°De
48°Rø
15.71429°De
49°Rø
18.57143°De
50°Rø
21.42857°De
51°Rø
24.28571°De
52°Rø
27.14286°De
53°Rø
30.00000°De
54°Rø
32.85714°De
55°Rø
35.71429°De
56°Rø
38.57143°De
57°Rø
41.42857°De
58°Rø
44.28571°De
59°Rø
47.14286°De
Rømer
Delisle
60°Rø
50.00000°De
61°Rø
52.85714°De
62°Rø
55.71429°De
63°Rø
58.57143°De
64°Rø
61.42857°De
65°Rø
64.28571°De
66°Rø
67.14286°De
67°Rø
70.00000°De
68°Rø
72.85714°De
69°Rø
75.71429°De
70°Rø
78.57143°De
71°Rø
81.42857°De
72°Rø
84.28571°De
73°Rø
87.14286°De
74°Rø
90.00000°De
75°Rø
92.85714°De
76°Rø
95.71429°De
77°Rø
98.57143°De
78°Rø
101.42857°De
79°Rø
104.28571°De