Rømer to Delisle

Bookmark Page Delisle to Rømer (Swap Units)


Note: Fractional results are rounded to the nearest 1/64. For a more accurate answer please select 'decimal' from the options above the result.

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.

Note: For a pure decimal result please select 'decimal' from the options above the result.

Show formula

Convert Rømer to Delisle

°De =
(°Rø - 7.5)* 2.8571
Show working
Show result in exponential format


Rømer is a temperature scale named after the Danish astronomer Ole Christensen Rømer, who proposed it in 1701. In this scale, the zero was initially set using freezing brine. The boiling point of water was defined as 60 degrees. Rømer then saw that the freezing point of pure water was roughly one eighth of the way (about 7.5 degrees) between these two points, so he redefined the lower fixed point to be the freezing point of water at precisely 7.5 degrees. The inventor of the Fahrenheit scale Daniel Gabriel Fahrenheit learned of Rømer's work increasing the number of divisions by a factor of four and establishing what is now known as the Fahrenheit scale.


Convert Rømer to Delisle

°De =
(°Rø - 7.5)* 2.8571


Rømer to Delisle table
Print table
< Smaller Values Larger Values >
Rømer Delisle
0°Rø -121.43°De
1°Rø -118.57°De
2°Rø -115.71°De
3°Rø -112.86°De
4°Rø -110.00°De
5°Rø -107.14°De
6°Rø -104.29°De
7°Rø -101.43°De
8°Rø -98.57°De
9°Rø -95.71°De
10°Rø -92.86°De
11°Rø -90.00°De
12°Rø -87.14°De
13°Rø -84.29°De
14°Rø -81.43°De
15°Rø -78.57°De
16°Rø -75.71°De
17°Rø -72.86°De
18°Rø -70.00°De
19°Rø -67.14°De
Rømer Delisle
20°Rø -64.29°De
21°Rø -61.43°De
22°Rø -58.57°De
23°Rø -55.71°De
24°Rø -52.86°De
25°Rø -50.00°De
26°Rø -47.14°De
27°Rø -44.29°De
28°Rø -41.43°De
29°Rø -38.57°De
30°Rø -35.71°De
31°Rø -32.86°De
32°Rø -30.00°De
33°Rø -27.14°De
34°Rø -24.29°De
35°Rø -21.43°De
36°Rø -18.57°De
37°Rø -15.71°De
38°Rø -12.86°De
39°Rø -10.00°De
Rømer Delisle
40°Rø -7.14°De
41°Rø -4.29°De
42°Rø -1.43°De
43°Rø 1.43°De
44°Rø 4.29°De
45°Rø 7.14°De
46°Rø 10.00°De
47°Rø 12.86°De
48°Rø 15.71°De
49°Rø 18.57°De
50°Rø 21.43°De
51°Rø 24.29°De
52°Rø 27.14°De
53°Rø 30.00°De
54°Rø 32.86°De
55°Rø 35.71°De
56°Rø 38.57°De
57°Rø 41.43°De
58°Rø 44.29°De
59°Rø 47.14°De
Metric Conversion Table iPhone & Android app Temperature Currency Weight Length Area Volume Speed Time Angle Pressure Energy and Power Health and Wellbeing