Rankine to Kelvin Converter
Enter a value to instantly convert between temperature units.
Precision4 dp
1 Rankine = 0.5556 Kelvin
Key Formulas
Celsius → Fahrenheit
°F = f(°C)Fahrenheit → Celsius
°C = f(°F)Celsius → Kelvin
K = f(°C)Kelvin → Celsius
°C = f(K)Formula
K = °R × 0.555556Both Rankine and Kelvin are absolute temperature scales starting at absolute zero. They differ only in degree size — 1.8 Rankine degrees equals 1 Kelvin. Multiplying by 5/9 (or 0.5556) converts between the two absolute scales directly.
Source: NIST SP 811
Frequently Asked Questions
Real-World Examples
491.67°R equals 273.15 K — freezing point.
491.67 °R = 273.15 K
671.67°R equals 373.15 K — boiling point.
671.67 °R = 373.15 K
0°R equals 0 K — absolute zero on both scales.
0 °R = 0 K
536.67°R equals 298.15 K — room temperature.
536.67 °R = 298.15 K