degree Rankine to degree Réaumur
Live degree Rankine (°R) to degree Réaumur (°Ré) converter. Plus a 10-value reference table and FAQs.
Conversion table
Ten sample values from degree Rankine to degree Réaumur. Use the converter above for arbitrary values.
| degree Rankine (°R) | → | degree Réaumur (°Ré) |
|---|---|---|
| 0.001 °R | → | -218.519556 °Ré |
| 0.01 °R | → | -218.515556 °Ré |
| 0.1 °R | → | -218.475556 °Ré |
| 0.5 °R | → | -218.297778 °Ré |
| 1 °R | → | -218.075556 °Ré |
| 2 °R | → | -217.631111 °Ré |
| 5 °R | → | -216.297778 °Ré |
| 10 °R | → | -214.075556 °Ré |
| 100 °R | → | -174.075556 °Ré |
| 1,000 °R | → | 225.924444 °Ré |
About the degree Rankine
Fahrenheit scale starting at absolute zero. Used in US engineering.
About the degree Réaumur
Water freezes at 0°, boils at 80°. Historical, used in cheese.
How degree Rankine to degree Réaumur conversion works
Temperature scales are affine: the result needs both a scale factor and a zero-point offset. That is why °R to °Ré cannot be reduced to a simple percentage change.
The right unit depends on the convention used by your industry, country, instrument, or source document.
Unit definitions and conversion factors are maintained in the Unitbox methodology. Last reviewed with the current conversion dataset.
Frequently asked questions
Frequently Asked Questions
How do I convert degree Rankine to degree Réaumur?
Multiply the degree Rankine value by -218.075556 to get it in degree Réaumur. For example, 10 °R = -214.0756 °Ré.
What is 1 °R in °Ré?
1 °R = -218.075556 °Ré.
What is 100 °R in °Ré?
100 °R = -174.0756 °Ré.
What is the formula?
Temperature is an affine quantity. The formula depends on the source and target scales; °R → °Ré uses: T(°Ré) = T(°R) × 0.555556 + -218.52, then applies the inverse on the other side.