Convert Réaumur to Kelvin
Degrees Réaumur to kelvin. Enter a value to convert, or use the Réaumur to Kelvin chart further down the page.
Degrees Réaumur and kelvin are measured on scales with different zero points, so the conversion needs a formula rather than a single factor.
How to convert Réaumur to Kelvin
Degrees Réaumur and kelvin use different zero points, so you cannot convert them with a single multiplication. Apply the formula K = °Ré × 5/4 + 273.15 instead.
K = °Ré × 5/4 + 273.15
Worked example
Convert 20 °Ré to kelvin:
20 °Ré = 298.15 K
Réaumur to Kelvin conversion chart
Use this Réaumur to Kelvin table for quick reference without typing anything.
| degrees Réaumur (°Ré) | kelvin (K) |
|---|---|
| -40 °Ré | 223.15 K |
| -20 °Ré | 248.15 K |
| -10 °Ré | 260.65 K |
| 0 °Ré | 273.15 K |
| 10 °Ré | 285.65 K |
| 20 °Ré | 298.15 K |
| 30 °Ré | 310.65 K |
| 40 °Ré | 323.15 K |
| 60 °Ré | 348.15 K |
| 80 °Ré | 373.15 K |
What is a degree Réaumur?
The Réaumur scale sets water’s freezing point at 0 °Ré and its boiling point at 80 °Ré. It is largely historical but survives in some cheese and syrup making.
What is a kelvin?
The kelvin is the SI base unit of temperature. It starts at absolute zero and uses the same degree size as Celsius, so 0 K equals −273.15 °C.
Frequently asked questions
How many Kelvin are in a degree Réaumur?
Degrees Réaumur and kelvin have no fixed ratio, because the two scales start at different zero points. Convert between them with K = °Ré × 5/4 + 273.15 instead of multiplying by a single number.
How do you convert Réaumur to Kelvin?
Degrees Réaumur and kelvin use different zero points, so you cannot convert them with a single multiplication. Apply the formula K = °Ré × 5/4 + 273.15 instead.
What is 10 Réaumur in Kelvin?
10 Réaumur equals 285.65 Kelvin. The conversion chart on this page lists the other values people look up most often.
Related temperature conversions
Convert Réaumur to other units
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