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Celsius Converter

Convert Celsius to Intervaldegree Reaumur and more • 15 conversions

Result

0

1 0
Conversion Formula
1 = ---
Quick Reference
1 = 1
10 = 10
50 = 50
100 = 100
500 = 500
1000 = 1000

Unit Explanations

Celsius°C

Source Unit

Celsius, denoted by the symbol °C, is a scale and unit of measurement for temperature. It is named after the Swedish astronomer Anders Celsius, who developed a similar temperature scale. In the Celsius scale, the freezing point of water is 0 degrees, and the boiling point is 100 degrees under standard atmospheric pressure. This makes it especially useful for scientific calculations and everyday temperature measurements as it aligns closely with the metric system. The Celsius scale is widely used around the world, with the exception of some countries like the United States, which predominantly uses Fahrenheit.

°C = (°F - 32) × 5/9

Current Use

The Celsius scale is the most widely used temperature scale in the world today. It is used in most countries for daily temperature measurements. In scientific contexts, it is used alongside the Kelvin scale, which is the SI unit for temperature. The Celsius scale's straightforward alignment with the metric system makes it an ideal choice for educational, scientific, and meteorological purposes.

Fun Fact

The Celsius scale was initially reversed, with 0 as boiling point and 100 as freezing point.

Réaumur°Re

Target Unit

The Réaumur scale, denoted as °Re, is a temperature scale established by the French scientist René Antoine Ferchault de Réaumur in the early 18th century. The scale is defined such that 0 degrees Réaumur corresponds to the freezing point of water, while 80 degrees Réaumur corresponds to the boiling point of water at standard atmospheric pressure. The scale is a linear scale, meaning that equal intervals on the scale represent equal differences in temperature. This scale was particularly popular in Europe until the late 19th century but has since been largely replaced by the Celsius and Kelvin scales.

°C = °Re × 1.25

Current Use

Today, the Réaumur scale is rarely used but can still be found in some specific applications, particularly in historical texts and discussions about temperature measurement in the context of brewing and traditional practices. It is primarily of interest to historians and those studying the development of thermometry. The scale is sometimes referenced in educational contexts when discussing the evolution of temperature measurement.

Fun Fact

The Réaumur scale was once widely used in the brewing industry, particularly in France, for its relevance to fermentation temperatures.

Decimals:
Scientific:OFF

Result

0

1
0
Conversion Formula
1 = ...
1→1
10→10
100→100
1000→1000

📐Conversion Formula

= × 1.00000

How to Convert

To convert to , multiply the value by 1.00000. This conversion factor represents the ratio between these two units.

Quick Examples

1
=
1.000
10
=
10.00
100
=
100.0

💡 Pro Tip: For the reverse conversion (), divide by the conversion factor instead of multiplying.

°C

Celsius

temperatureNon-SI

Definition

Celsius, denoted by the symbol °C, is a scale and unit of measurement for temperature. It is named after the Swedish astronomer Anders Celsius, who developed a similar temperature scale. In the Celsius scale, the freezing point of water is 0 degrees, and the boiling point is 100 degrees under standard atmospheric pressure. This makes it especially useful for scientific calculations and everyday temperature measurements as it aligns closely with the metric system. The Celsius scale is widely used around the world, with the exception of some countries like the United States, which predominantly uses Fahrenheit.

History & Origin

The Celsius scale was developed by Swedish astronomer Anders Celsius in 1742. Originally, Celsius devised his scale with 0 as the boiling point of water and 100 as the freezing point, which was later inverted by Carl Linnaeus in 1744 to its current form. This scale quickly became popular due to its straightforward 100-degree interval between the key physical phenomena of freezing and boiling water, which made it intuitive and easy to use, particularly for scientific work.

Etymology: The term 'Celsius' comes from the surname of Anders Celsius, the inventor of this temperature scale.

1742: Anders Celsius introduces his ...1744: Carl Linnaeus inverts the Cels...1948: The name 'Celsius' is official...

Current Use

The Celsius scale is the most widely used temperature scale in the world today. It is used in most countries for daily temperature measurements. In scientific contexts, it is used alongside the Kelvin scale, which is the SI unit for temperature. The Celsius scale's straightforward alignment with the metric system makes it an ideal choice for educational, scientific, and meteorological purposes.

MeteorologyEducationHealthcareScience

💡 Fun Facts

  • The Celsius scale was initially reversed, with 0 as boiling point and 100 as freezing point.
  • Celsius is used by scientists worldwide, except in the U.S., where Fahrenheit is more common.
  • The Celsius scale is often called centigrade, a term derived from Latin meaning 'hundred steps'.

📏 Real-World Examples

0 °C
Freezing point of water
100 °C
Boiling point of water
37 °C
Average human body temperature
22 °C
Room temperature
4 °C
Refrigerator temperature

🔗 Related Units

Fahrenheit (°C = (°F - 32) × 5/9)Kelvin (K = °C + 273.15)Rankine (°R = (°C + 273.15) × 9/5)Réaumur (°Ré = °C × 0.8)
°Re

Réaumur

temperatureNon-SI

Definition

The Réaumur scale, denoted as °Re, is a temperature scale established by the French scientist René Antoine Ferchault de Réaumur in the early 18th century. The scale is defined such that 0 degrees Réaumur corresponds to the freezing point of water, while 80 degrees Réaumur corresponds to the boiling point of water at standard atmospheric pressure. The scale is a linear scale, meaning that equal intervals on the scale represent equal differences in temperature. This scale was particularly popular in Europe until the late 19th century but has since been largely replaced by the Celsius and Kelvin scales.

History & Origin

The Réaumur scale was proposed by René Antoine Ferchault de Réaumur in 1730. It was initially developed for scientific use and was widely adopted in various fields, including brewing and meteorology. The scale's use in industrial settings, particularly in Europe, allowed for standardized temperature measurements that were crucial for various processes, particularly in the 18th and 19th centuries.

Etymology: The term 'Réaumur' derives from the name of its inventor, René Antoine Ferchault de Réaumur, a French naturalist who lived from 1683 to 1757.

1730: Réaumur proposes his temperatu...1954: The last notable use in scient...

Current Use

Today, the Réaumur scale is rarely used but can still be found in some specific applications, particularly in historical texts and discussions about temperature measurement in the context of brewing and traditional practices. It is primarily of interest to historians and those studying the development of thermometry. The scale is sometimes referenced in educational contexts when discussing the evolution of temperature measurement.

BrewingMeteorologyHistorical research

💡 Fun Facts

  • The Réaumur scale was once widely used in the brewing industry, particularly in France, for its relevance to fermentation temperatures.
  • René Antoine Ferchault de Réaumur also invented the alcohol thermometer, which used alcohol instead of mercury.
  • The scale is sometimes humorously referred to as the 'baker's scale' because bakers in France would often use it to monitor dough temperatures.

📏 Real-World Examples

0 °Re
Freezing point of water
80 °Re
Boiling point of water
20 °Re
Room temperature approximation
30 °Re
Hot summer day
5 °Re
Refrigerator temperature

🔗 Related Units

Celsius (Celsius is a more commonly used temperature scale where 0°C equals 0°Re.)Fahrenheit (Fahrenheit has a different zero point and scale increments compared to Réaumur.)Kelvin (Kelvin is the absolute temperature scale, with 0 K being equal to -273.15°C.)Rankine (Rankine is an absolute temperature scale used primarily in engineering, related to Fahrenheit.)

Frequently Asked Questions

How do I convert to ?

To convert to , multiply your value by 1. For example, 10 equals 10 .

What is the formula for to conversion?

The formula is: = × 1. This conversion factor is based on international standards.

Is this to converter accurate?

Yes! MetricConv uses internationally standardized conversion factors from organizations like NIST and ISO. Our calculations support up to 15 decimal places of precision, making it suitable for scientific, engineering, and everyday calculations.

Can I convert back to ?

Absolutely! You can use the swap button (⇄) in the converter above to reverse the conversion direction, or visit our to converter.

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