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Fahrenheit Converter

Convert Fahrenheit to Degree 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

Fahrenheit°F

Source Unit

Fahrenheit is a temperature measurement scale where the freezing point of water is defined as 32 degrees Fahrenheit (°F) and the boiling point as 212°F at standard atmospheric pressure. This scale divides the interval between the freezing and boiling points of water into 180 equal parts. It is predominantly used in the United States and some Caribbean nations for non-scientific applications, making it one of the few non-metric temperature scales still in use.

(°F - 32) × 5/9 = °C

Current Use

Today, the Fahrenheit scale is primarily used in the United States and a few Caribbean countries for non-scientific applications, such as weather forecasts, cooking, and air conditioning. It is less commonly used in scientific contexts where the Celsius scale or Kelvin scale is preferred.

Fun Fact

The Fahrenheit scale was the first widely used temperature scale.

Degree Réaumur°Ré

Target Unit

The degree Réaumur (°Ré) is a temperature scale developed by René Antoine Ferchault de Réaumur in the early 18th century. It is defined such that 0°Ré corresponds to the freezing point of water and 80°Ré corresponds to the boiling point of water at standard atmospheric pressure. The scale is based on the expansion of alcohol or mercury and is less commonly used today, primarily in some European countries. Despite its relative obscurity compared to Celsius and Fahrenheit, it represents a significant historical contribution to the field of thermometry, particularly in the context of early scientific studies in thermodynamics.

°C = (°Ré × 1.25) and °Ré = (°C × 0.8)

Current Use

Today, the degree Réaumur is rarely used in daily life or scientific research. However, it may still be encountered in specific contexts, such as certain industries that have historical ties to this measurement. Some culinary fields in France and Belgium may reference Réaumur for traditional recipes, while it also appears in historical documents and literature. Its use is primarily of academic interest, serving as a reminder of the development of temperature measurement.

Fun Fact

The Réaumur scale was once widely used in Europe, especially in France, but is now considered obsolete.

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.

°F

Fahrenheit

temperatureNon-SI

Definition

Fahrenheit is a temperature measurement scale where the freezing point of water is defined as 32 degrees Fahrenheit (°F) and the boiling point as 212°F at standard atmospheric pressure. This scale divides the interval between the freezing and boiling points of water into 180 equal parts. It is predominantly used in the United States and some Caribbean nations for non-scientific applications, making it one of the few non-metric temperature scales still in use.

History & Origin

The Fahrenheit scale was developed by Daniel Gabriel Fahrenheit, a Polish-German physicist, in 1724. He based his scale on three reference points: the lowest temperature he could achieve with a mixture of ice, water, and ammonium chloride (0°F), the freezing point of water (32°F), and the average human body temperature (approximately 96°F at the time, now adjusted to 98.6°F).

Etymology: The term 'Fahrenheit' originates from Daniel Gabriel Fahrenheit's last name.

1724: Fahrenheit scale introduced by...1959: International agreement to red...

Current Use

Today, the Fahrenheit scale is primarily used in the United States and a few Caribbean countries for non-scientific applications, such as weather forecasts, cooking, and air conditioning. It is less commonly used in scientific contexts where the Celsius scale or Kelvin scale is preferred.

Weather forecastingCookingHVAC

💡 Fun Facts

  • The Fahrenheit scale was the first widely used temperature scale.
  • Fahrenheit initially set 0°F as the lowest temperature he could create in his lab.
  • Fahrenheit's original human body temperature scale was adjusted from 96°F to 98.6°F.

📏 Real-World Examples

95 °F
A hot summer day
32 °F
Freezing point of water
50 °F
A mild winter day
98.6 °F
Body temperature
350 °F
Oven preheating for baking

🔗 Related Units

Celsius (Celsius and Fahrenheit are related through the formula (°F - 32) × 5/9 = °C.)Kelvin (Kelvin is the SI base unit for temperature and can be converted from Fahrenheit using K = (°F + 459.67) × 5/9.)Rankine (Rankine is a Fahrenheit-based absolute temperature scale, with 0°R equivalent to -459.67°F.)Réaumur (Réaumur is another historical temperature scale, less commonly used today.)
°Ré

Degree Réaumur

temperatureNon-SI

Definition

The degree Réaumur (°Ré) is a temperature scale developed by René Antoine Ferchault de Réaumur in the early 18th century. It is defined such that 0°Ré corresponds to the freezing point of water and 80°Ré corresponds to the boiling point of water at standard atmospheric pressure. The scale is based on the expansion of alcohol or mercury and is less commonly used today, primarily in some European countries. Despite its relative obscurity compared to Celsius and Fahrenheit, it represents a significant historical contribution to the field of thermometry, particularly in the context of early scientific studies in thermodynamics.

History & Origin

The degree Réaumur was first proposed by René Antoine Ferchault de Réaumur in 1731. De Réaumur was a French scientist who sought a practical temperature scale based on the properties of liquids. His scale was used extensively in Europe, particularly in France and Germany, for several centuries, primarily in scientific and industrial applications. Over time, however, it was overshadowed by the Celsius scale, which provided a more universal and straightforward application due to its alignment with the metric system.

Etymology: The term 'Réaumur' is derived from the name of the inventor, René Antoine Ferchault de Réaumur, reflecting his contributions to thermometry.

1731: Invention of the degree Réaumu...1959: International agreement on tem...

Current Use

Today, the degree Réaumur is rarely used in daily life or scientific research. However, it may still be encountered in specific contexts, such as certain industries that have historical ties to this measurement. Some culinary fields in France and Belgium may reference Réaumur for traditional recipes, while it also appears in historical documents and literature. Its use is primarily of academic interest, serving as a reminder of the development of temperature measurement.

Food and BeverageHistorical Research

💡 Fun Facts

  • The Réaumur scale was once widely used in Europe, especially in France, but is now considered obsolete.
  • René Antoine Ferchault de Réaumur was also a pioneer in the study of thermodynamics and entomology.
  • The Réaumur scale is sometimes used in historical temperature records, especially in studies of 18th and 19th-century climates.

📏 Real-World Examples

0 °Ré
Freezing point of water
80 °Ré
Boiling point of water
20 °Ré
Room temperature
37 °Ré
Body temperature
30 °Ré
A hot summer day

🔗 Related Units

Degree Celsius (1°Ré is equivalent to 1.25°C.)Degree Fahrenheit (Fahrenheit and Réaumur can be converted using Celsius as an intermediary.)Kelvin (Kelvin can be derived from Celsius, which relates to Réaumur.)Degree Rankine (Rankine is another temperature scale related through absolute temperature and can be compared with Réaumur.)

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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