Formula – How to calculate Rankine
| | To Rankine (°R) | From Rankine (°R) |
| Celsius (°C) | (°C + 273.15) x 1.8 = °R | (°R – 491.67) x 5/9 = °C |
| Fahrenheit (°F) | °F + 459.67 = °R | °R – 459.67 = °F |
| Kelvin (K) | K x 1.8 = °R | °R x 5/9 = K |
| Rømer (°Rø) | ((°Rø – 7.5) x 24/7) + 491.67 = °R | ((°R – 491.67) x 7/24) + 7.5 = °Rø |
| Réaumur (°Ré) | (°Ré x 9/4) + 491.67 = °R | (°R – 491.67) x 4/9 = °Ré |
| Newton (°N) | (N x 60/11) + 491.67 = °R | (°R – 491.67) x 4/9 = °N |
| Delisle (°D) | 671.67 – (°D x 6/5) = °R | (671.67 – °R) x 5/6 = °D |
What is Rankine?
Rankine is a temperature unit that uses Fahrenheit’s intervals with Kelvin’s 0 degrees as absolute 0.
Rankine is used in applications where heat calculations are done using Fahrenheit.