Kelvin to Réaumur
1 Kelvin equals -217.72 Réaumur on this page.
Direct Answer
1 Kelvin equals -217.72 Réaumur
This conversion uses a scale-and-offset equation (°Ré = (K - 273.15) / 1.25).
For 20 Kelvin, the converted value equals -202.52 Réaumur.
Converter Calculator
-217.72 Réaumur (°Ré)
SwitchExplanation
Use this page when you want a direct Kelvin to Réaumur conversion. On this page, 1 Kelvin equals -217.72 Réaumur.
Historical temperature scales can differ by degree size, zero reference, or both, so this route uses the exact direction-specific equation °Ré = (K - 273.15) / 1.25 instead of one shared factor.
Kelvin (K): the SI base unit of thermodynamic temperature, anchored to absolute zero.
Réaumur (deg Re): a historical temperature scale where water freezes at 0 deg Re and boils at 80 deg Re.
This route is useful when translating modern or absolute temperature references into historical Réaumur values for comparison with older scientific and industrial records.
This conversion uses an affine or exact linear historical-scale equation, so forward and reverse pages must keep their own dedicated formulas to stay numerically aligned.
Reference note
This Kelvin to Réaumur page uses explicit historical scale equations (scale + offset), not a simple multiplier.
- Historical temperature scales are reconstructed from standard reference definitions.
- Forward and reverse directions use inverse formulas, so each direction has its own dedicated page.
Common Conversion Values
| Kelvin (K) | Réaumur (°Ré) |
|---|---|
| -40 | -250.52 |
| 0 | -218.52 |
| 20 | -202.52 |
| 32 | -192.92 |
| 80 | -154.52 |
| 100 | -138.52 |
Frequently Asked Questions
What is 1 Kelvin in Réaumur?
1 Kelvin equals -217.72 Réaumur on this page.
What equation does this Kelvin to Réaumur page use?
This page uses °Ré = (K - 273.15) / 1.25, and the same equation drives the direct answer, calculator, table, and FAQ.
Is there a reverse page for Réaumur to Kelvin?
Yes. The reverse direction has its own page at /historical-temperature-scales/reaumur-to-kelvin/, where the inverse equation is used so the mirror route stays numerically aligned.