Rankine to Kelvin converter
Type a Rankine value and read Kelvin instantly, with the other two scales alongside. The formula is K = °R × 5/9.
- 0 °R = 0 K
- 491.67 °R = 273.15 K
- 527.67 °R = 293.15 K
- 671.67 °R = 373.15 K
How to convert Rankine to Kelvin
K = °R × 5/9
Kelvin is the SI unit of temperature, used in physics, chemistry and engineering. It starts at absolute zero, so it never goes negative, and it is written without a degree sign. Step through a worked example:
K = °R × 5/9
- …
°R to K table
| Rankine (°R) | Kelvin (K) |
|---|---|
| 0 °R | 0 K |
| 100 °R | 55.56 K |
| 200 °R | 111.11 K |
| 300 °R | 166.67 K |
| 400 °R | 222.22 K |
| 419.67 °R | 233.15 K |
| 459.67 °R | 255.37 K |
| 491.67 °R | 273.15 K |
| 500 °R | 277.78 K |
| 527.67 °R | 293.15 K |
| 537.67 °R | 298.71 K |
| 558.27 °R | 310.15 K |
| 600 °R | 333.33 K |
| 671.67 °R | 373.15 K |
| 700 °R | 388.89 K |
| 800 °R | 444.44 K |
| 1000 °R | 555.56 K |
| 1500 °R | 833.33 K |
| 2000 °R | 1111.11 K |
Need more rows? The full temperature conversion chart goes from −50 to 300 °C.
Questions
How do you convert Rankine to Kelvin?
Use K = °R × 5/9. For example, 527.67 °R is 293.15 K.
What is 0 °R in Kelvin?
0 °R equals 0 K.
What is 100 °R in Kelvin?
100 °R equals 55.56 K.
Why use Kelvin?
Kelvin is the SI unit of temperature, used in physics, chemistry and engineering. It starts at absolute zero, so it never goes negative, and it is written without a degree sign.
What is the temperature unit °R?
°R is the degree Rankine, an absolute temperature unit the same size as a Fahrenheit degree. 0 °R is absolute zero (−459.67 °F), water freezes at 491.67 °R and boils at 671.67 °R at sea level.
Are Rankine and Kelvin the same?
Both start at absolute zero, but a kelvin is 1.8 times bigger than a degree Rankine. So °R = K × 9/5: 300 K is 540 °R.
Why is Kelvin written without a degree sign?
Since 1967 the SI unit has been "the kelvin" (K), a unit like the metre, not "degrees Kelvin". A kelvin is the same size as a Celsius degree.