78 Degrees Farenheit To Celcius

Convert Fahrenheit to Celsius

Please provide values below to convert Fahrenheit [°F] to Celsius [°C], or vice versa.

Fahrenheit

Definition: The Fahrenheit (symbol: °F) is a unit of temperature that was widely used prior to metrication. It is currently defined past two fixed points: the temperature at which water freezes, 32°F, and the boiling point of h2o, 212°F, both at body of water level and standard atmospheric pressure. The interval between the freezing and boiling betoken is divided into 180 equal parts.

History/Origin: The Fahrenheit calibration was developed based on a measurement proposed in 1724 past the German physicist Daniel Gabriel Fahrenheit. He initially based the scale on an equal ice-common salt mixture, selecting the values of 30°F for the freezing signal of water, and ninety°F for normal body temperature. He later adjusted the scale such that the melting signal of ice was 32°F and body temperature was 96°F. He chose these values to simplify the degree markings he could make on his instruments, since this departure between the temperatures immune him to mark degree lines by bisecting the interval six times. Later, when using the freezing and boiling points of water as stock-still reference points for thermometers became popular, the scale was slightly re-defined such that at that place would be 180 degrees separating freezing and boiling point, resulting in normal man body temperature being approximately 98°F, rather than Fahrenheit'southward 96°F.

Current use: Until the 1960's the Fahrenheit scale was the chief calibration used in English-speaking countries. Today, virtually countries around the world use the Celsius temperature scale instead, many having made the change during their metrication processes (conversion to using the metric arrangement of units). However, the Fahrenheit scale is still used as the official temperature scale in a number of countries, including the United States (besides as its unincorporated territories), the Bahamas, Belize, the Cayman Islands, and a few others.

Celsius

Definition: The Celsius (symbol: °C) is an SI (International Organisation of Units) derived unit of temperature. Information technology is defined based on the SI unit of temperature, the kelvin. The Celsius and Kelvin scales are precisely related, with a one-degree modify in Celsius being equal to a one degree-change in kelvin. The kelvin (and thus Celsius) is defined based on the Boltzmann constant, k, which equals one.380649 × 10^-23 when expressed in the unit J·Yard^-1, a unit equivalent to kg·thou²·s^-two·Chiliad^-one. The kilogram, meter, and 2nd, are defined based on Planck's constant, h, the speed of calorie-free, c, and cesium frequency, ΔνCs.

History/origin: From 1743 until 1954, the Celsius calibration was based on 0°C for the freezing indicate of water and 100 °C for the boiling point of water, both at a pressure of one standard atmosphere, using mercury equally the working fabric. This was not always the case, and originally 0°C was defined as the boiling point of water and 100°C was defined equally the melting point of snow. Celsius equally a unit and a scale was not widely used until this original definition was inverted. In 1954, the unit, "caste Celsius," besides equally the Celsius scale were once again re-defined to instead be based on absolute nothing (-273.15 °C) and the triple point of VSMOW (especially purified h2o). This is the definition that was used up until 2019, when the kelvin was redefined based on the definitions of the second, meter, and kilogram.

Current use: The Celsius calibration replaced the Fahrenheit scale in well-nigh countries in the mid to late 20^thursday century. Almost all countries around the globe use this scale, except for those in which the metric organisation has not been adopted, such as the United States. Even in countries like the Usa still, Celsius is widely used within the scientific community—it but is not widely used in everyday temperature references.

Fahrenheit to Celsius Conversion Table

Fahrenheit [°F]	Celsius [°C]
0.01 °F	-17.7722222222 °C
0.i °F	-17.7222222222 °C
1 °F	-17.2222222222 °C
2 °F	-16.6666666667 °C
3 °F	-16.1111111111 °C
5 °F	-xv °C
ten °F	-12.2222222222 °C
20 °F	-half-dozen.6666666667 °C
50 °F	10 °C
100 °F	37.7777777778 °C
1000 °F	537.7777777778 °C

How to Catechumen Fahrenheit to Celsius

Example: convert fifty °F to: °C
fifty °F = (50 - 32) × 5/9 = 10 °C

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