Converting from Rankine (°R) to Réaumur (°Ré) | Temperature

What is Rankine (°R)

Rankine (°R) is an absolute temperature scale often used in engineering and thermodynamics. It shares the same degree interval as the Fahrenheit scale but uses absolute zero as its starting point.

What is Réaumur (°Ré)

Réaumur (°Ré) is a temperature scale that was commonly used in Europe. It divides the freezing and boiling points of water into 80 equal parts.

Conversion Formulas

The conversion formulas between Rankine and Réaumur are as follows:

°Ré=(°R+218.0756)×495.674​

°R=(°Ré−1.25)×4495.67​

Examples

1. Converting 11 °R to °Ré:

11°R=(11+218.0756)×495.674​=−213.6311°Ré

2. Converting 5 °R to °Ré:

5°R=(5+218.0756)×495.674​=−216.2978°Ré

3. Converting 12 °Ré to °R:

12°Ré=(12−1.25)×4495.67​=518.67°R

Conclusion

Use these formulas to easily convert temperatures between Rankine and Réaumur measurements.