Convert Rankine to Kelvin and Kelvin to Rankine instantly. Bidirectional temperature converter with formula and common values.
To convert Rankine to Kelvin, multiply by 5/9. Both are absolute temperature scales, differing only in the size of one degree.
| °R | K |
|---|---|
| 0 | 0 |
| 419.67 | 233.15 |
| 491.67 | 273.15 |
| 527.67 | 293.15 |
| 558.27 | 310.15 |
| 671.67 | 373.15 |
| 900 | 500.00 |
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Multiply the Rankine value by 5/9. For example, 491.67 °R × 5/9 = 273.15 K.
Yes. Both start at absolute zero (0 °R = 0 K). They differ in degree size: Rankine uses Fahrenheit-sized degrees while Kelvin uses Celsius-sized degrees.
The ratio is exactly 9/5 (or 1.8). One Kelvin equals 1.8 Rankine degrees.
Rankine is mainly used in US engineering thermodynamics, particularly in the Rankine cycle for steam power plants. Most of the scientific world uses Kelvin.