Fahrenheit Converter
Convert Fahrenheit to Kelvin and more • 15 conversions
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Unit Explanations
Fahrenheit°F
Source UnitFahrenheit 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.
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.
KelvinK
Target UnitThe Kelvin (K) is the base unit of temperature in the International System of Units (SI). It is defined by taking the fixed numerical value of the Boltzmann constant, k, to be 1.380649×10^-23 when expressed in the unit J K^-1, which is equal to kg m^2 s^-2 K^-1. The Kelvin is used to measure thermodynamic temperature and is one of the seven SI base units. Unlike Celsius, the Kelvin scale is an absolute scale starting from absolute zero, the point at which all molecular motion ceases.
Current Use
The Kelvin is widely used in scientific research, particularly in physics and chemistry, where precise temperature measurements are crucial. It is also used in engineering applications and space sciences, due to its absolute nature. The Kelvin is vital in any field where temperature plays a critical role, from material science to cosmology.
Fun Fact
The Kelvin scale does not use degrees, unlike Celsius and Fahrenheit.
Fahrenheit to Kelvin Converter
To convert Fahrenheit to Kelvin: First convert to Celsius by subtracting 32 and multiplying by 5/9, then add 273.15. Example: 77°F = (77-32) × 5/9 + 273.15 = 298.15 K.
Fahrenheit (°F)
Definition
Fahrenheit is a temperature scale where 32°F is the freezing point of water and 212°F is the boiling point at standard atmospheric pressure.
Origins & History
Daniel Gabriel Fahrenheit developed this scale in 1724. He set 0°F as the temperature of an ice-salt mixture and 96°F as human body temperature (later revised to 98.6°F).
Kelvin (K)
Definition
Kelvin is the absolute temperature scale used in science, with 0 K representing absolute zero—the coldest possible temperature.
Origins & History
Lord Kelvin (William Thomson) proposed this scale in 1848 to provide an absolute reference point for thermodynamics, eliminating negative temperatures in heat calculations.
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📐Conversion Formula
= × 1.00000How to Convert
To convert to , multiply the value by 1.00000. This conversion factor represents the ratio between these two units.
Quick Examples
💡 Pro Tip: For the reverse conversion ( → ), divide by the conversion factor instead of multiplying.
Fahrenheit
temperature • Non-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.
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 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
🔗 Related Units
Kelvin
temperature • SI Unit
Definition
The Kelvin (K) is the base unit of temperature in the International System of Units (SI). It is defined by taking the fixed numerical value of the Boltzmann constant, k, to be 1.380649×10^-23 when expressed in the unit J K^-1, which is equal to kg m^2 s^-2 K^-1. The Kelvin is used to measure thermodynamic temperature and is one of the seven SI base units. Unlike Celsius, the Kelvin scale is an absolute scale starting from absolute zero, the point at which all molecular motion ceases.
History & Origin
The Kelvin scale was developed in the mid-19th century by Lord Kelvin, a prominent physicist, who proposed an absolute temperature scale independent of the properties of a particular substance. This concept of absolute zero provided a uniform scale for comparing temperatures, based on the laws of thermodynamics.
Etymology: Named after Lord Kelvin, born William Thomson, who was a physicist and engineer.
Current Use
The Kelvin is widely used in scientific research, particularly in physics and chemistry, where precise temperature measurements are crucial. It is also used in engineering applications and space sciences, due to its absolute nature. The Kelvin is vital in any field where temperature plays a critical role, from material science to cosmology.
💡 Fun Facts
- •The Kelvin scale does not use degrees, unlike Celsius and Fahrenheit.
- •Absolute zero, 0 K, is theoretically the lowest temperature possible.
- •The Kelvin scale is named after a person, unlike most other SI units.
📏 Real-World Examples
🔗 Related Units
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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.
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Absolutely! You can use the swap button (⇄) in the converter above to reverse the conversion direction, or visit our to converter.