How are kelvin and rankine related?
R = K × (9/5), or equivalently K = R × (5/9).
Detailed answer
Both are absolute scales. One kelvin interval equals one Celsius interval; one rankine interval equals one Fahrenheit interval. Since a Celsius degree is 9/5 the size of a Fahrenheit degree as an interval, K and R differ by the factor 9/5 from absolute zero.
Relationship context
Rankine appears in some US engineering thermodynamics references alongside BTU and imperial units.
Quick conversion table
| Kelvin (k) | Rankine (r) |
|---|---|
| 0 | 0 |
| 200 | 360 |
| 273.15 | 491.67 |
| Kelvin (k) | Rankine (r) |
|---|---|
| 300 | 540 |
| 310.15 | 558.27 |
| 373.15 | 671.67 |
More Kelvin converters
Dedicated pages from Kelvin to the other scales (Celsius, Fahrenheit, Kelvin, Rankine).