Rankine to Réaumur (°R to ºRé)

Rankine to Réaumur (°R to ºRé) conversion calculator

Réaumur to Rankine (ºRé to °R) (Swap units)

1°R = -218.07556ºRé

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.

Rankine to Réaumur (ºR to ºRé) formula

Réaumur = (Rankine - 491.67) / 2.25000002

Rankine to Réaumur calculation

Réaumur = (Rankine - 491.67) / 2.25000002

Réaumur = (0 - 491.67) / 2.25

Réaumur = -491.67 / 2.25

Réaumur = -218.52

About Rankine

Rankine is temperature unit normally used in thermodynamics. It is named after the Scottish engineer and physicist William John Macquorn Rankine, who is know for his work in thermodynamics. The Rankine scale is based on the Fahrenheit scale with degree increments identical but starting at absolute zero.

With the zero point at absolute zero (-459.67°F) it is easy to convert between Rankine and Fahrenheit: simply subtract 459.67.

The Rankine scale is not normally used in everyday life as it is an engineering unit particularly thermodynamics in the United States.

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.

 

Rankine to Réaumur table

Starting value
Increment
Accuracy
Rankine
Réaumur
0°R
-218.52000ºRé
1°R
-218.07556ºRé
2°R
-217.63111ºRé
3°R
-217.18667ºRé
4°R
-216.74222ºRé
5°R
-216.29778ºRé
6°R
-215.85333ºRé
7°R
-215.40889ºRé
8°R
-214.96444ºRé
9°R
-214.52000ºRé
10°R
-214.07556ºRé
11°R
-213.63111ºRé
12°R
-213.18667ºRé
13°R
-212.74222ºRé
14°R
-212.29778ºRé
15°R
-211.85333ºRé
16°R
-211.40889ºRé
17°R
-210.96444ºRé
18°R
-210.52000ºRé
19°R
-210.07556ºRé
Rankine
Réaumur
20°R
-209.63111ºRé
21°R
-209.18667ºRé
22°R
-208.74222ºRé
23°R
-208.29778ºRé
24°R
-207.85333ºRé
25°R
-207.40889ºRé
26°R
-206.96444ºRé
27°R
-206.52000ºRé
28°R
-206.07556ºRé
29°R
-205.63111ºRé
30°R
-205.18667ºRé
31°R
-204.74222ºRé
32°R
-204.29778ºRé
33°R
-203.85333ºRé
34°R
-203.40889ºRé
35°R
-202.96444ºRé
36°R
-202.52000ºRé
37°R
-202.07556ºRé
38°R
-201.63111ºRé
39°R
-201.18667ºRé
Rankine
Réaumur
40°R
-200.74222ºRé
41°R
-200.29778ºRé
42°R
-199.85333ºRé
43°R
-199.40889ºRé
44°R
-198.96444ºRé
45°R
-198.52000ºRé
46°R
-198.07556ºRé
47°R
-197.63111ºRé
48°R
-197.18667ºRé
49°R
-196.74222ºRé
50°R
-196.29778ºRé
51°R
-195.85333ºRé
52°R
-195.40889ºRé
53°R
-194.96444ºRé
54°R
-194.52000ºRé
55°R
-194.07556ºRé
56°R
-193.63111ºRé
57°R
-193.18667ºRé
58°R
-192.74222ºRé
59°R
-192.29778ºRé
Rankine
Réaumur
60°R
-191.85333ºRé
61°R
-191.40889ºRé
62°R
-190.96444ºRé
63°R
-190.52000ºRé
64°R
-190.07556ºRé
65°R
-189.63111ºRé
66°R
-189.18667ºRé
67°R
-188.74222ºRé
68°R
-188.29778ºRé
69°R
-187.85333ºRé
70°R
-187.40889ºRé
71°R
-186.96444ºRé
72°R
-186.52000ºRé
73°R
-186.07556ºRé
74°R
-185.63111ºRé
75°R
-185.18667ºRé
76°R
-184.74222ºRé
77°R
-184.29778ºRé
78°R
-183.85333ºRé
79°R
-183.40889ºRé