How to Convert Celsius to Fahrenheit? – With Conversion Formula and Exciting Facts

Temperature is a physical property to measure the degree of hotness or coldness of a body or an object. Starting from various scientific experiments to the research work in all branches of physics, technology, and science, the temperature is a very significant attribute to consider. And among all the units of temperature, Celsius and Fahrenheit are the most widely used units. Knowing the formula to convert Celsius to Fahrenheit will help you quickly switch between these two units.
The symbols to denote Celsius and Fahrenheit are °F and °C respectively.

Conversion calculator – how to convert Celsius to Fahrenheit

If you have a temperature value in Celsius and are wondering how to convert it to Fahrenheit, just put the amount in the calculator given above, and you will get the required result.

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Conversion formula of Celsius to Fahrenheit

The conversion formula of T degree Celsius (T °C) to T degree Fahrenheit (T °F) is quite simple:

T(°F) = T(°C) × 9/5 + 32

In other ways, just multiply Celsius by 1.8 and add 32 to it will give you corresponding value in °F.

Example

Let’s say you want to convert 25 °C to Fahrenheit.

Using the above formula we get,

25 °C = (25× 9/5+ 32) °F=77 °F

Conversion formula of Fahrenheit to Celsius

The conversion formula of T degree Fahrenheit (T °F) to T degree Celsius (T °C) is as below

T (°C) = (T(°F) – 32) × 5/9

Example

If you want to convert 55 Fahrenheit to Celsius, using the above formula we get

55 °F = (55- 32) × 5/9 °C=12.78°C

What is Celsius?

The Celsius scale is a temperature scale used by the SI units (International System of Units). Most of the countries use this unit to measure temperature except Liberia and the United States.

In the area of science and technology as well, Celsius scale is used more commonly than the Fahrenheit scale.

In the standard condition (at the sea level and one atmospheric pressure) the freezing and boiling temperatures of water are 0 °C and 100 °C respectively.

This scale uses the unit named degree Celsius or (°C).

The international definition of the Celsius scale is based on the base unit of the temperature of physics called Kelvin (K).

0 K = −273.15 °C

Origin

The former name of the Celsius scale was centigrade scale, the source of which is the Latin word centum meaning one hundred.

The name ‘Celsius’ has come from the name of the Swedish astronomer Anders Celsius as he   (1701–1744)  invented a similar scale much before.

Unit °C defines a particular temperature or a difference between two temperatures on this scale.

Usages

  • Celsius scale is the most common unit to measure temperature in all kinds of scientific or laboratory experiments.
  • To denote the freezing (0 Celsius) and boiling points (100 Celsius) of water we use this unit more frequently than any other scale of the unit.
  • Scientists find this scale most suitable for all their research work as the temperature change of 1 °C is equal to the same of 1 K(Kelvin).

What is Fahrenheit?

The Fahrenheit is a scale of the unit to measure the temperature, where the freezing point of water is 32° F and the boiling point of water is 212° F. These two points have a 180 ° difference in this scale.

This scale uses the unit degree Fahrenheit (°F).

Origin

The German-born Scientist and Physicist Daniel Gabriel Fahrenheit invented the Fahrenheit temperature scale at first in 1724.

He used a mixture of water, ice, and ammonium chloride and put the thermometer in this mixture to determine the lowest point of this temperature scale. This mixture is an example of the frigorific mixture (A mixture to obtain equilibrium temperature in scientific experiments).

By this experiment, he determined the lowest point of temperature as 0 °F (−17.78 °C).

Later he re-calibrated the Fahrenheit scale using the melting point of ice and the temperature of a normal human body.

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The definition and calibration of the Fahrenheit scale have been changed and evolved through the years then after until the present one has invented.

The United States including its territories and the other associated states use this scale to measure temperature.

Usages

  • For the weather and temperature reports, this unit is used widely (especially in the U.S).
  • In various fields like cooking, medical, etc, the temperature is expressed in this unit.
  • In many countries, it is used as a supplementary scale to precisely measure the temperature.
  • For body temperature measurement, this scale is the most common one. The normal human body temperature is 98.6 degrees Fahrenheit.

Quick look-up – Celsius to Fahrenheit conversion table

Degree CelsiusDegree Fahrenheit
133.8
235.6
337.4
439.2
541.0
642.8
744.6
846.4
948.2
1050.0
50122.0
100212.0

Interesting facts about Celsius and Fahrenheit scales

  • The lowest possible temperature in the thermodynamic temperature (The absolute and exact measure of temperature in physics) is called the absolute zero.
    Absolute zero is equal to −273.15 °C or −459.67 °F.
  • The Rankine temperature scale (named after the physicist William John Macquorn Rankine) was based on the Fahrenheit temperature.
  • The absolute zero of temperature is also called the triple point of water. In this temperature, all three states (solid, liquid and gas) of a substance exist in an equilibrium condition.
  • The temperature of the surface of the Sun is about 5,600 Celsius (10,000 Fahrenheit).
  • The human body temperatures above 104 °F (40 °C) can be fatal and life-threatening. In normal conditions, the oral temperature is 97.3° to 98.8° F.
  • 52-year-old Willie Jones of Atlanta (1980) holds the Guinness Book of World Records honor for surviving even after having the highest recorded body temperature (115 degrees Fahrenheit) in this world.
  • A Celsius is a unit of temperature measurement on the scale of which 0 degrees and 100 degrees are taken as the freezing and boiling points of water respectively.
  • In the Fahrenheit scale of temperature, the freezing point of water is 32°, and the boiling point is 212°.
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