# Celsius Scale Definition

The Celsius scale, often referred to as the centigrade scale, represents a temperature scale depending on the freezing and boiling points of water, 0°C and 100°C, respectively.

• In 1742 A.D., the Swedish astronomer Anders Celsius introduced the scale and gave it his name. The sign for this scale is °C.
• The initial design of the Celsius scale placed the melting point of ice at 100°C and the boiling temperature of water at 0°C,but it was eventually reversed to its current configuration.
• The bottom fixed point on this scale is assumed to be 0 degrees Celsius,while the higher fixed point is taken to be 100°C.
• One degree Celsius (1°C) is equivalent to each of the 100 equal parts that make up the area between these two temperatures.
• Water freezes at 0 degrees Celsius but also boils at 100 degrees Celsius,according to the inverted Celsius scale.
• The triple point of Vienna Standard Mean ocean water serves as the foundation of the newer, better Celsius scale, which also incorporates the idea of absolute zero.
• As a result, the triple point of water serves as the foundation for the present understanding of the Celsius scale rather than the freezing point and boiling point of water.
• Absolute zero, or 0K, or -273.15°C, is the lowest temperature that may exist after May 2019. Prior to then, however, 273.16 K, or 0.01 °C, was precisely established as the temperature of water’s triple point.
• On a Celsius scale, the normal body temperature of an adult is 37°C.
• The formula for translating from the Celsius scale to the Fahrenheit scale is °F = (9/5) °C + 32.
• All scientific reasons employ the Celsius scale, which is often used in regions that use the metric system of measurement.

## Fahrenheit Scale Definition

A temperature scale called the Fahrenheit scale is based on the fact that water freezes at 32°F and boils at 212°F.

• Daniel Gabriel Fahrenheit, a scientist, invented the scale and gave it his name in 1720. The sign for this scale is °F.
• The temperature of a brine solution with equal parts ice, water, and salt is the lowest defining point on the Fahrenheit scale (ammonium chloride).
• The average body temperature was first calculated at 96°F and then revised to 98.6°F.
• The lower fixed point on this scale is taken to be 32°F, while the higher fixed point is taken to be 212°F.
• Each of the 180 equal portions of the area between these two temperatures represents one degree Fahrenheit (1°F).
• As a result, according to the Fahrenheit scale, water has a freezing point of 32°F and a boiling temperature of 212°F.
• °C = (°F – 32) 5/9 is the formula for converting degrees Fahrenheit to degrees Celsius.
• The Fahrenheit scale’s definition of absolute zero is -459.67° F.
• The earliest universally recognised temperature scale is the Fahrenheit scale. Up to the 1960s, it was common in the majority of English-speaking countries.
• After 1960, this scale was subsequently superseded by the Celsius scale in all save the United States.

## Celsius vs Fahrenheit Scale

Basis for Comparison Celsius Scale Fahrenheit Scale
Definition Celsius scale, or centigrade scale, is a temperature scale that is based on the freezing point of water at 0°C and the boiling point of water at 100°C. Fahrenheit scale is a temperature scale that is based on the freezing point of water at 32°F and the boiling point of water at 212°F.
Denoted by Celsius scale or simply Celsius is abbreviated as Degree C (°C). Fahrenheit is abbreviated as Degree F (°F).
Introduced by or Named after It is named after the astronomer ‘Andres Celsius’. It is named after the physicist ‘Daniel Gabriel Fahrenheit’.
The freezing point of water The freezing point of water or the melting point of ice in the Celsius scale is 0°C. It is the lower fixed point of the scale. The freezing point of water or the melting point of ice in the Fahrenheit scale is 32°F. It is the lower fixed point of the scale.
The boiling point of water The boiling point of water, as described in the Celsius scale, is 100°C. It is the upper fixed point of the scale. On the Fahrenheit scale, the boiling point of water is 212°F. It is the upper fixed point of the scale.
Average human body temperature The average human body temperature, as measured in the Celsius scale, is 37°C. The average human body temperature in the Fahrenheit scale is 98.6°F.
Absolute zero value On the Celsius scale, the absolute zero value is set at -273.15°C. The absolute zero value in the Fahrenheit scale is -459.67°F.
Divisions The melting and boiling point of water in the Celsius scale is divided into 100 equal divisions, each division representing 1°C. The melting and boiling point of water in the Fahrenheit scale is divided into 180 equal intervals, each division denoting 1°F.
Used The Celsius scale is widely used in almost every part of the globe. Fahrenheit scale is mostly used in the United States and some of its territories.
Conversion It can be converted into Fahrenheit by the formula; Degree Fahrenheit is easily convertible into Celsius by the formula;
°F = (9/5 × °C) + 32 °C = (°F – 32) × 5/9

## Celsius scale to Fahrenheit scale online calculator

https://www.metric-conversions.org/temperature/celsius-to-fahrenheit.htm

https://www.rapidtables.com/convert/temperature/celsius-to-fahrenheit.html

https://www.almanac.com/content/temperature-conversion

https://www.mathsisfun.com/temperature-conversion.html

https://www.calculatorsoup.com/calculators/conversions/temperature.php

https://power-calculation.com/convert-celsius-fahrenheit-temperature.php

https://www.calculators.org/math/temperature.php

https://www.engineeringtoolbox.com/temperature-d_291.html

https://ostermiller.org/calc/temperature.html

## Fahrenheit scale to Celsius scale online calculator

https://calculator-converter.com/fahrenheit-to-celsius.htm

https://www.fahrenheittocelsius.com/

https://www.convert-me.com/en/convert/temperature/

https://ncalculators.com/unit-conversion/celsius-fahrenheit-converter.htm

https://planetcalc.com/494/

http://www.csgnetwork.com/temp2conv.html

https://www.lenntech.com/calculators/temperature/temperature.htm

https://www.translatorscafe.com/unit-converter/en-US/temperature/3-2/degree%20Fahrenheit-degree%20Celsius/

https://www.curiousnotions.com/temperature-converter/

## References and Sources

• 3% – https://www.lenntech.com/calculators/temperature/temperature.htm
• 3% – https://en.wikipedia.org/wiki/Celsius
• 3% – https://biodifferences.com/difference-between-celsius-and-fahrenheit.html
• 2% – https://en.wikipedia.org/wiki/Scale_of_temperature
• 2% – http://www.jspayne.com/php/SummaryGet.php?FindGo=Fahrenheit
• 1% – https://www.nextgurukul.in/wiki/concept/icse/class-7/physics/heat/temperature-and-its-measurement/3959265
• 1% – https://www.britannica.com/technology/Celsius-temperature-scale
• 1% – https://www.britannica.com/science/Fahrenheit-temperature-scale