Celsius to Réaumur
Convert Celsius to Réaumur and back. The scale puts water’s freezing point at 0 and its boiling point at 80, and it lingers in European cheese and syrup recipes.
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Common values
Formula
°Ré = ℃ × 0.8
Multiply Celsius by 0.8 to get Réaumur. Both scales share the same zero, so no offset is needed — only the multiplication.
Frequently asked questions
Q. How many °Ré is 1 ℃?
1 ℃ is 0.8 °Ré, and 10 ℃ is 8 °Ré. Type any value in the box above to convert instantly.
Q. And how many ℃ is 1 °Ré?
1 °Ré is 1.25 ℃. This converter works both ways, so typing in the right box updates the left one.
Q. Where is this unit used?
Multiply Celsius by 0.8 to get Réaumur. Both scales share the same zero, so no offset is needed — only the multiplication.
Other converters
Traditional units (geun, doe, majigi and so on) vary by region and product.