Convert Rankine to Réaumur
Turn Rankine into Réaumur in an instant. Type a value below to get an accurate °R → °Ré result, with the formula and a quick-reference table.
1 °R = -218.07556 °Ré
Quick answer: 1 Rankine = -218.07556 Réaumur
Rankine to Réaumur conversion table
| Rankine (°R) | Réaumur (°Ré) |
|---|---|
| 1 °R | -218.07556 °Ré |
| 2 °R | -217.63111 °Ré |
| 5 °R | -216.29778 °Ré |
| 10 °R | -214.07556 °Ré |
| 20 °R | -209.63111 °Ré |
| 50 °R | -196.29778 °Ré |
| 100 °R | -174.07556 °Ré |
| 500 °R | 3.7022222 °Ré |
| 1,000 °R | 225.92444 °Ré |
How to convert Rankine to Réaumur
- Enter the value in Rankine in the converter above.
- It applies the exact °R → °Ré formula instantly.
- Read the converted result in Réaumur.
For example, the freezing point of water is about 491.67 °R, which is 0 °Ré.
About Rankine and Réaumur
Rankine is an absolute temperature scale that uses Fahrenheit-sized degrees, starting at absolute zero. It appears in some US engineering and thermodynamics work.
Réaumur is a historical scale with water freezing at 0° and boiling at 80°. It is now rare, but survives in some European food and cheese-making traditions.
The Rankine and the Réaumur are different scales, so the converter applies the exact °R → °Ré formula — handling any offset between them — to give an accurate result every time.
Other temperature conversions
Frequently asked questions
How many Réaumur are in a Rankine?
1 Rankine converts to -218.07556 Réaumur (°R → °Ré). For any other amount, enter it in the converter above — it applies the exact °R → °Ré formula instantly, with full precision.
How do I convert Rankine to Réaumur?
Enter the number of Rankine in the converter above and read the result in Réaumur. It applies the exact °R → °Ré factor instantly, with full precision.
Is the Rankine to Réaumur converter free?
Yes — it is completely free and unlimited, needs no sign-up, and runs right in your browser, so it is instant and private.
Is the conversion accurate?
Yes. It uses the internationally defined temperature factors and full floating-point precision, then rounds the display to a clean, readable number.