The Degree Rankine, named after Scottish engineer and physicist William John Macquorn Rankine, is a thermodynamic temperature scale used primarily in engineering fields, especially in the United States. It is based on the Fahrenheit scale, with 0°R equivalent to absolute zero, effectively extending the Fahrenheit scale to begin at zero. Unlike Celsius or Kelvin, which are commonly used in scientific contexts, Rankine is particularly relevant in the context of engineering disciplines like thermodynamics and aerospace, where it facilitates calculations involving heat and energy.
One interesting aspect of the Rankine scale is that it is still used in niche applications, especially in calculations for steam power and internal combustion engines. Since Rankine is aligned with the Fahrenheit degree intervals, converting temperatures between Rankine and Fahrenheit is straightforward; all you need to do is add or subtract 459.67 degrees. This convenience can be crucial in industries reliant on precise thermal calculations where efficiency and safety are paramount.
The Kelvin scale, an absolute temperature scale, is named after the renowned physicist Lord Kelvin, who introduced it in 1848. Unlike Celsius or Fahrenheit, Kelvin starts at absolute zero, the theoretical point where atomic motion stops entirely. This makes it incredibly useful in scientific settings because it allows for a more straightforward understanding of thermal phenomena without negative numbers complicating calculations.
One fascinating fact about Kelvin is its connection to the cosmic microwave background radiation, the afterglow of the Big Bang. This radiation has a temperature of about 2.725 Kelvin, providing a glimpse into the universe just 380,000 years after its inception. Furthermore, Kelvin is crucial for describing phenomena like superconductivity and Bose-Einstein Condensates, which occur close to absolute zero, sparking innovations in technology and materials science.
Degrees Rankine | Kelvins |
---|---|
0
°R
|
-5.68434e-14
K
|
10
°R
|
5.55556
K
|
20
°R
|
11.11111
K
|
30
°R
|
16.66667
K
|
40
°R
|
22.22222
K
|
50
°R
|
27.77778
K
|
60
°R
|
33.33333
K
|
70
°R
|
38.88889
K
|
80
°R
|
44.44444
K
|
90
°R
|
50
K
|
100
°R
|
55.55556
K
|
110
°R
|
61.11111
K
|
120
°R
|
66.66667
K
|
130
°R
|
72.22222
K
|
140
°R
|
77.77778
K
|
150
°R
|
83.33333
K
|
160
°R
|
88.88889
K
|
170
°R
|
94.44444
K
|
180
°R
|
100
K
|
190
°R
|
105.55556
K
|
200
°R
|
111.11111
K
|
210
°R
|
116.66667
K
|
220
°R
|
122.22222
K
|
230
°R
|
127.77778
K
|
240
°R
|
133.33333
K
|
250
°R
|
138.88889
K
|
260
°R
|
144.44444
K
|
270
°R
|
150
K
|
280
°R
|
155.55556
K
|
290
°R
|
161.11111
K
|
300
°R
|
166.66667
K
|
310
°R
|
172.22222
K
|
320
°R
|
177.77778
K
|
330
°R
|
183.33333
K
|
340
°R
|
188.88889
K
|
350
°R
|
194.44444
K
|
360
°R
|
200
K
|
370
°R
|
205.55556
K
|
380
°R
|
211.11111
K
|
390
°R
|
216.66667
K
|
400
°R
|
222.22222
K
|
410
°R
|
227.77778
K
|
420
°R
|
233.33333
K
|
430
°R
|
238.88889
K
|
440
°R
|
244.44444
K
|
450
°R
|
250
K
|
460
°R
|
255.55556
K
|
470
°R
|
261.11111
K
|
480
°R
|
266.66667
K
|
490
°R
|
272.22222
K
|
500
°R
|
277.77778
K
|
510
°R
|
283.33333
K
|
520
°R
|
288.88889
K
|
530
°R
|
294.44444
K
|
540
°R
|
300
K
|
550
°R
|
305.55556
K
|
560
°R
|
311.11111
K
|
570
°R
|
316.66667
K
|
580
°R
|
322.22222
K
|
590
°R
|
327.77778
K
|
600
°R
|
333.33333
K
|
610
°R
|
338.88889
K
|
620
°R
|
344.44444
K
|
630
°R
|
350
K
|
640
°R
|
355.55556
K
|
650
°R
|
361.11111
K
|
660
°R
|
366.66667
K
|
670
°R
|
372.22222
K
|
680
°R
|
377.77778
K
|
690
°R
|
383.33333
K
|
700
°R
|
388.88889
K
|
710
°R
|
394.44444
K
|
720
°R
|
400
K
|
730
°R
|
405.55556
K
|
740
°R
|
411.11111
K
|
750
°R
|
416.66667
K
|
760
°R
|
422.22222
K
|
770
°R
|
427.77778
K
|
780
°R
|
433.33333
K
|
790
°R
|
438.88889
K
|
800
°R
|
444.44444
K
|
810
°R
|
450
K
|
820
°R
|
455.55556
K
|
830
°R
|
461.11111
K
|
840
°R
|
466.66667
K
|
850
°R
|
472.22222
K
|
860
°R
|
477.77778
K
|
870
°R
|
483.33333
K
|
880
°R
|
488.88889
K
|
890
°R
|
494.44444
K
|
900
°R
|
500
K
|
910
°R
|
505.55556
K
|
920
°R
|
511.11111
K
|
930
°R
|
516.66667
K
|
940
°R
|
522.22222
K
|
950
°R
|
527.77778
K
|
960
°R
|
533.33333
K
|
970
°R
|
538.88889
K
|
980
°R
|
544.44444
K
|
990
°R
|
550
K
|
1000
°R
|
555.55556
K
|
Conversion | Call to Action |
---|---|
Rankine to Degrees Celsius | Go to converter |
Rankine to Degrees Fahrenheit | Go to converter |
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