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Rankine to Delisle Converter

Convert degrees Rankine (°R) to degrees Delisle (°De), with the formula, a conversion table and exact factors.

Change the values and press Calculate to work out your own figures.

Enter a temperature, choose its unit and the unit you want. The answer is exact until it is shown, and the same value appears in every other unit.

A number, fraction (3/8), mixed number (1 1/2), scientific notation (2.5e6) or a simple sum such as 2*3.
The unit you want the answer in. Swap exchanges the two units.
Result
558.891666667 °De
degrees Fahrenheit
-458.67 °F
degrees Celsius
-272.594444444 °C
kelvins
0.555555555556 K
degrees Newton
-89.9561666667 °N

1 °R = 558.891666667 °De

Show the working
  1. 1 °R = 0.555555555556 K
  2. 0.555555555556 K = 558.891666667 °De

How to convert rankine to delisle

These scales have different zero points as well as different degree sizes, so the conversion adds or subtracts an offset as well as multiplying.

Worked example:

100 °R = 55.5555555556 K
55.5555555556 K = 476.391666667 °De

Rankine to delisle table

RankineDelisle
0 °R559.725 °De
10 °R551.391666667 °De
20 °R543.058333333 °De
25 °R538.891666667 °De
30 °R534.725 °De
37 °R528.891666667 °De
40 °R526.391666667 °De
50 °R518.058333333 °De
60 °R509.725 °De
70 °R501.391666667 °De
80 °R493.058333333 °De
90 °R484.725 °De
100 °R476.391666667 °De
150 °R434.725 °De
200 °R393.058333333 °De
250 °R351.391666667 °De
300 °R309.725 °De

About the units

Rankine (°R)
Degrees Rankine, a US customary unit. Definition: NIST SP 811 Appendix B.8 (T/K = (T/°R)/1.8).
Delisle (°De)
Degrees Delisle, a specialised unit. Historical scale; the Delisle scale runs backwards (higher numbers are colder). Definition: Delisle and Newton temperature scales (historical definitions: 0 °De = 100 °C, 1 °De = −2/3 K; 0 °N = 0 °C, 1 °N = 100/33 K).

Formula version 0.1.0Reviewed