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Fahrenheit Converter

Convert Fahrenheit 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

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.

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is based on the fractional division of the temperature range between freezing and boiling water, making it an important historical reference in thermometry.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

📐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

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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