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Rankine Converter

Convert Rankine to 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

Rankine°R

Source Unit

The Rankine scale is an absolute temperature scale named after the Scottish engineer and physicist William John Macquorn Rankine. It is primarily used in thermodynamics and engineering fields in the United States. The Rankine scale sets its zero point at absolute zero, the same as the Kelvin scale, but uses degrees Fahrenheit for its increments. This means that a change of 1 degree Rankine is equivalent to a change of 1 degree Fahrenheit. The formula for converting Fahrenheit to Rankine is °R = °F + 459.67.

°R = °F + 459.67

Current Use

The Rankine scale is currently used in engineering fields, particularly in the United States, for thermodynamic calculations. Although it is not as widely used as it once was, Rankine is still relevant in certain niche areas where absolute temperature measurements are required. Industries such as aerospace, mechanical engineering, and HVAC (heating, ventilation, and air conditioning) utilize Rankine for specific applications.

Fun Fact

Rankine is mostly used in the US, similar to how Kelvin is used worldwide.

Réaumur°Ré

Target Unit

The Réaumur scale, also known as the octogesimal scale, is a temperature scale defined by the freezing point of water at 0 degrees Réaumur (°Ré) and the boiling point at 80 degrees Réaumur. It was proposed by the French scientist René Antoine Ferchault de Réaumur in 1730. The scale was widely used in Europe, particularly in France and Germany, until the adoption of the Celsius scale. The Réaumur scale is based on the fractional division of the temperature range between freezing and boiling water, making it an important historical reference in thermometry.

°C = (°Ré) * 1.25

Current Use

Today, the Réaumur scale is largely obsolete and is rarely used in everyday temperature measurements. However, it still holds historical significance and is occasionally referenced in academic contexts or discussions about historical temperature scales. Certain niche industries, especially in food processing and brewing, may still employ the Réaumur scale in specific contexts.

Fun Fact

The Réaumur scale was widely used in the 18th century, especially in France and Germany.

Decimals:
Scientific:OFF

Result

0

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

Convert Rankine to Réaumur

Converting Rankine to Réaumur is common in trade and industry. Our tool updates continuously to provide the best data.

Conversion Formula
reaumur = rankine × [Factor]

Applies the standard conversion factor.

IN

Rankine

Definition

Absolute thermodynamic temperature scale.

Origins & History

Proposed by William John Macquorn Rankine in 1859.

Current Use: Standard in temperature.
OUT

Réaumur

Definition

Historical temperature scale.

Origins & History

Defined with 0 as freezing and 80 as boiling point of water.

Current Use: Standard in temperature.

📐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.

°R

Rankine

temperatureNon-SI

Definition

The Rankine scale is an absolute temperature scale named after the Scottish engineer and physicist William John Macquorn Rankine. It is primarily used in thermodynamics and engineering fields in the United States. The Rankine scale sets its zero point at absolute zero, the same as the Kelvin scale, but uses degrees Fahrenheit for its increments. This means that a change of 1 degree Rankine is equivalent to a change of 1 degree Fahrenheit. The formula for converting Fahrenheit to Rankine is °R = °F + 459.67.

History & Origin

The Rankine scale was proposed by William John Macquorn Rankine in 1859. Rankine was a key figure in the development of thermodynamics and sought to create a scale that paralleled Kelvin's absolute temperature scale but used Fahrenheit degrees instead of Celsius. The Rankine scale became particularly useful in the United States, where Fahrenheit was the preferred temperature measurement system. Over time, the Rankine scale has been largely replaced by Kelvin in scientific contexts but remains in use in certain engineering fields.

Etymology: Named after William John Macquorn Rankine.

1859: Introduction of the Rankine sc...

Current Use

The Rankine scale is currently used in engineering fields, particularly in the United States, for thermodynamic calculations. Although it is not as widely used as it once was, Rankine is still relevant in certain niche areas where absolute temperature measurements are required. Industries such as aerospace, mechanical engineering, and HVAC (heating, ventilation, and air conditioning) utilize Rankine for specific applications.

AerospaceMechanical EngineeringHVAC

💡 Fun Facts

  • Rankine is mostly used in the US, similar to how Kelvin is used worldwide.
  • The Rankine scale uses the same degree size as Fahrenheit, not Celsius.
  • It was one of the first scales to define absolute zero, similar to Kelvin.

📏 Real-World Examples

491.67 °R
Freezing point of water
671.67 °R
Boiling point of water
527.67 °R
Room temperature
558.27 °R
Average body temperature
10720 °R
Surface temperature of the Sun

🔗 Related Units

Kelvin (Both are absolute temperature scales.)Fahrenheit (Rankine uses Fahrenheit degree increments.)Celsius (Both are temperature scales, but Celsius is not absolute.)Réaumur (Another historical temperature scale.)
°Ré

Réaumur

temperatureNon-SI

Definition

The Réaumur scale, also known as the octogesimal scale, is a temperature scale defined by the freezing point of water at 0 degrees Réaumur (°Ré) and the boiling point at 80 degrees Réaumur. It was proposed by the French scientist René Antoine Ferchault de Réaumur in 1730. The scale was widely used in Europe, particularly in France and Germany, until the adoption of the Celsius scale. The Réaumur scale is based on the fractional division of the temperature range between freezing and boiling water, making it an important historical reference in thermometry.

History & Origin

The Réaumur temperature scale originated in the early 18th century, developed by the French physicist René Antoine Ferchault de Réaumur. He introduced the scale in 1730, creating a temperature measurement system based on the properties of water. The scale gained popularity in scientific and industrial applications, particularly in France and Germany, before the rise of the Celsius scale.

Etymology: The term 'Réaumur' is derived from the name of its inventor, René Antoine Ferchault de Réaumur, who was a prominent French scientist known for his contributions to thermometry and other fields.

1730: Introduction of the Réaumur sc...

Current Use

Today, the Réaumur scale is largely obsolete and is rarely used in everyday temperature measurements. However, it still holds historical significance and is occasionally referenced in academic contexts or discussions about historical temperature scales. Certain niche industries, especially in food processing and brewing, may still employ the Réaumur scale in specific contexts.

Food ProcessingBrewing

💡 Fun Facts

  • The Réaumur scale was widely used in the 18th century, especially in France and Germany.
  • René Antoine Ferchault de Réaumur was not just a scientist; he was also a member of the French Academy of Sciences.
  • The Réaumur scale is sometimes referred to as the octogesimal scale due to its division of the boiling and freezing points into 80 degrees.

📏 Real-World Examples

0 °Ré
Water freezing point
80 °Ré
Water boiling point
20 °Ré
Room temperature
60 °Ré
Cooking temperature
37.5 °Ré
Body temperature

🔗 Related Units

Celsius (1°Ré = 1.25°C)Fahrenheit (1°Ré = 32°F + 1.8(°Ré))Kelvin (°Ré = (°K - 273.15) * 1.25)Rankine (1°Ré = 1.8°R)

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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