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Dieser Rechner wird derzeit auf Englisch angezeigt, während die Übersetzung vorbereitet wird.

Umrechnungen

Verifizierter Rechner mit transparenter Formel

Umrechnungen

Réaumur to Celsius Converter.

Converts a temperature from the Réaumur scale to Celsius. The Réaumur scale sets the freezing point of water at 0°Ré and boiling point at 80°Ré.

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Ihre Eingaben

So funktioniert es

  1. 1

    Enter the temperature in degrees Réaumur.

  2. 2

    Multiply the Réaumur value by 1.25.

  3. 3

    The result is the temperature in degrees Celsius.

reaumur * 1.25

Häufig gestellte Fragen

What is the Réaumur scale?

The Réaumur scale is a temperature scale where water freezes at 0°Ré and boils at 80°Ré. It was widely used in Europe in the 18th and 19th centuries.

How do I convert Celsius to Réaumur?

To convert Celsius to Réaumur, divide the Celsius temperature by 1.25. For example, 25°C ÷ 1.25 = 20°Ré.

Is the Réaumur scale still used today?

It is rarely used today, but it appears in historical documents and some old recipes, especially in France and Germany.

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Formel geprüft

Temperature in Celsius

25°C

Fragen Sie alles

Schätzung nur zur allgemeinen Orientierung – wichtige Entscheidungen mit einem geeigneten Fachmann verifizieren.

So funktioniert es

Converts a temperature from the Réaumur scale to Celsius. The Réaumur scale sets the freezing point of water at 0°Ré and boiling point at 80°Ré.

  1. Enter the temperature in degrees Réaumur.
  2. Multiply the Réaumur value by 1.25.
  3. The result is the temperature in degrees Celsius.

Formeln

Die Mathematik hinter diesem Rechner, aufgeschrieben, damit Sie das Ergebnis überprüfen können.

Réaumur to Celsius

°C = °Ré × 1.25

Since 80°Ré equals 100°C, each degree Réaumur is 100/80 = 1.25 degrees Celsius.

Example:

Input: °Ré = 40

Calculation: 40 × 1.25

Result: 50°C

Anwendungsfälle im Alltag

Wo diese Berechnung im täglichen Leben vorkommt.

Historical temperature records

Convert old temperature readings from Réaumur to Celsius for research or genealogy.

Example: A diary entry says 30°Ré, which is 37.5°C.

Old recipes

Some vintage recipes specify oven temperatures in Réaumur; convert to Celsius for modern cooking.

Example: A recipe calls for 25°Ré, which is 31.25°C.

Educational purposes

Learn about historical temperature scales and their relationships.

Example: Understand why water boils at 80°Ré.

Tipps und häufige Fehler

Tips

  • Remember that 0°Ré is the freezing point of water, and 80°Ré is the boiling point.
  • For quick mental conversion, multiply Réaumur by 1.25 or add 25% of the value.
  • Use the calculator for precise conversions, especially for negative temperatures.

Common Mistakes to Avoid

  • Forgetting that the Réaumur scale has 80 degrees between freezing and boiling, not 100.
  • Using the wrong conversion factor, such as 1.8 (which is for Fahrenheit).
  • Confusing Réaumur with Rankine or other temperature scales.

Annahmen und Einschränkungen

  • Use the stated inputs and units.
  • Results are estimates for planning and education.
  • Check measurements and source data before making an important decision.