Convert Rankine to Kelvin
Enter a temperature in Rankine to see it in Kelvin. Conversion runs in your browser.
Rankine to Kelvin formula
K = (°R*5/9)Temperature scales differ in both their zero point and their degree size, so a conversion needs a multiplication and an offset — unlike length or weight, where a single factor is enough.
Conversion table
| Rankine (°R) | Kelvin (K) |
|---|---|
| -40°R | -22.222222K |
| -20°R | -11.111111K |
| 0°R | 0K |
| 10°R | 5.555556K |
| 20°R | 11.111111K |
| 25°R | 13.888889K |
| 30°R | 16.666667K |
| 37°R | 20.555556K |
| 50°R | 27.777778K |
| 75°R | 41.666667K |
| 100°R | 55.555556K |
| 200°R | 111.111111K |
About Rankine
The Rankine scale starts at absolute zero but uses Fahrenheit-sized degrees, and appears in US thermodynamics.
About Kelvin
The kelvin is the SI base unit of temperature, starting at absolute zero; it uses the same degree size as Celsius.
Frequently asked questions
What is 0°R in Kelvin?
0°R equals 0K.
What is normal body temperature?
37°C — about 310.15K.
At what temperature do the two scales meet?
Only Celsius and Fahrenheit cross, at −40°. Kelvin and Rankine both start at absolute zero and never go negative.