Rankine to Delisle Converter

Enter the temperature in Rankine in the top field, then press the 'Convert' button. Alternatively, you can convert from Delisle to Rankine by entering the value in Delisle in the bottom field and press 'Convert'.

Rankine to Delisle Conversion Formula


Reverse formula and conversion (Delisle to Rankine)


The Rankine scale is named after Scottish physicist William John Macquorn Rankine. Similarly to kelvin absolute zero is 0 °R, equivalent to -459.67 °F. Rankine uses the same interval as Fahrenheit.


The Delisle scale places the water freezing point at 150 °D, and water boiling point at 0 °D. Therefore at higher Delisle numbers correspond lower temperatures. It was invented by Joseph-Nicolas Delisle, a French astronomer.