Convert Celsius to Reaumur – Simple Celsius to Reaumur Calculator

To convert celsius to réaumur this temperature calculator uses Reaumur (°Re) = Celsius (°C) × 0.8 formula to help transform temperatures from Celsius scale to the historical Réaumur scale.

The Réaumur scale, developed by French scientist René Antoine Ferchault de Réaumur in 1730, was predominantly used in Europe, particularly in France and Germany, during the 18th and 19th centuries.

If you need to convert 25°C using Celsius to Réaumur converter, simply input 25 into the calculator, and it will automatically display 20°Ré as the result.

Celsius to Reaumur Converter

Celsius (°C)	Réaumur (°R)
1	0.8
2	1.6
3	2.4
4	3.2
5	4.0
6	4.8
7	5.6
8	6.4
9	7.2
10	8.0
15	12.0
20	16.0
25	20.0
30	24.0
35	28.0
40	32.0
45	36.0
50	40.0
55	44.0
60	48.0
65	52.0
70	56.0
75	60.0
80	64.0
85	68.0
90	72.0
95	76.0
100	80.0

Celsius to Réaumur Conversion Formula

Celsius to Réaumur conversion formula multiply the Celsius temperature by 0.8:

Formula: °Ré = °C × 0.8

Since both scales use 0° as the freezing point of water, but Réaumur uses 80° for boiling while Celsius uses 100°, the ratio becomes 80/100 = 0.8.

To convert 30°C to Réaumur:

• °Ré = 30°C × 0.8
• °Ré = 24

How to Convert Celsius to Réaumur?

The conversion process follows these detailed steps:

• Identify the temperature in Celsius.
• Multiply the Celsius value by 0.8.
• Express the result in degrees Réaumur (°Ré).

Let’s convert 50°C to Réaumur:

Take the temperature: 50°C

Multiply by 0.8: 50 × 0.8 = 40

Final result: 50°C = 40°Ré

What is 80 Degree Réaumur?

80 degrees Réaumur (80°Ré) represents the boiling point of water in the Réaumur scale. This temperature is equivalent to 100°C in the Celsius scale, demonstrating the different ways these scales divide the range between water’s freezing and boiling points.

To convert 80°Ré to Celsius:

• °C = °Ré × 1.25
• °C = 80 × 1.25
• °C = 100

References

Royal Society of Chemistry: https://www.rsc.org/periodic-table/history/

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