Rømer to Rankine (°Rø to °R)

Rankine 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

Rømer to Rankine formula

ºR =
(°Rø - 7.5)* 3.4286
+ 491.67
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.


Rømer to Rankine formula

ºR =
(°Rø - 7.5)* 3.4286
+ 491.67


A ºF version of the Kelvin scale. Based upon the definitions of the Fahrenheit scale and the experimental evidence that absolute zero is -459.67ºF


Rømer to Rankine table

Print table
< Smaller Values Larger Values >
Rømer Rankine
0°Rø 465.96ºR
1°Rø 469.38ºR
2°Rø 472.81ºR
3°Rø 476.24ºR
4°Rø 479.67ºR
5°Rø 483.10ºR
6°Rø 486.53ºR
7°Rø 489.96ºR
8°Rø 493.38ºR
9°Rø 496.81ºR
10°Rø 500.24ºR
11°Rø 503.67ºR
12°Rø 507.10ºR
13°Rø 510.53ºR
14°Rø 513.96ºR
15°Rø 517.38ºR
16°Rø 520.81ºR
17°Rø 524.24ºR
18°Rø 527.67ºR
19°Rø 531.10ºR
Rømer Rankine
20°Rø 534.53ºR
21°Rø 537.96ºR
22°Rø 541.38ºR
23°Rø 544.81ºR
24°Rø 548.24ºR
25°Rø 551.67ºR
26°Rø 555.10ºR
27°Rø 558.53ºR
28°Rø 561.96ºR
29°Rø 565.38ºR
30°Rø 568.81ºR
31°Rø 572.24ºR
32°Rø 575.67ºR
33°Rø 579.10ºR
34°Rø 582.53ºR
35°Rø 585.96ºR
36°Rø 589.38ºR
37°Rø 592.81ºR
38°Rø 596.24ºR
39°Rø 599.67ºR
Rømer Rankine
40°Rø 603.10ºR
41°Rø 606.53ºR
42°Rø 609.96ºR
43°Rø 613.38ºR
44°Rø 616.81ºR
45°Rø 620.24ºR
46°Rø 623.67ºR
47°Rø 627.10ºR
48°Rø 630.53ºR
49°Rø 633.96ºR
50°Rø 637.38ºR
51°Rø 640.81ºR
52°Rø 644.24ºR
53°Rø 647.67ºR
54°Rø 651.10ºR
55°Rø 654.53ºR
56°Rø 657.96ºR
57°Rø 661.38ºR
58°Rø 664.81ºR
59°Rø 668.24ºR