Convert Réaumur to Fahrenheit
Degrees Réaumur to degrees Fahrenheit. Enter a value to convert, or use the Réaumur to Fahrenheit chart further down the page.
Degrees Réaumur and degrees Fahrenheit are measured on scales with different zero points, so the conversion needs a formula rather than a single factor.
How to convert Réaumur to Fahrenheit
Degrees Réaumur and degrees Fahrenheit use different zero points, so you cannot convert them with a single multiplication. Apply the formula °F = °Ré × 9/4 + 32 instead.
°F = °Ré × 9/4 + 32
Worked example
Convert 20 °Ré to degrees Fahrenheit:
20 °Ré = 77 °F
Réaumur to Fahrenheit conversion chart
Use this Réaumur to Fahrenheit table for quick reference without typing anything.
| degrees Réaumur (°Ré) | degrees Fahrenheit (°F) |
|---|---|
| -40 °Ré | -58 °F |
| -20 °Ré | -13 °F |
| -10 °Ré | 9.5 °F |
| 0 °Ré | 32 °F |
| 10 °Ré | 54.5 °F |
| 20 °Ré | 77 °F |
| 30 °Ré | 99.5 °F |
| 40 °Ré | 122 °F |
| 60 °Ré | 167 °F |
| 80 °Ré | 212 °F |
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 degree Fahrenheit?
On the Fahrenheit scale water freezes at 32 °F and boils at 212 °F. It remains the standard scale for weather and cooking in the United States.
Frequently asked questions
How many Fahrenheit are in a degree Réaumur?
Degrees Réaumur and degrees Fahrenheit have no fixed ratio, because the two scales start at different zero points. Convert between them with °F = °Ré × 9/4 + 32 instead of multiplying by a single number.
How do you convert Réaumur to Fahrenheit?
Degrees Réaumur and degrees Fahrenheit use different zero points, so you cannot convert them with a single multiplication. Apply the formula °F = °Ré × 9/4 + 32 instead.
What is 10 Réaumur in Fahrenheit?
10 Réaumur equals 54.5 Fahrenheit. The conversion chart on this page lists the other values people look up most often.
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