Celsius °C to Fahrenheit °F

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Celsius definition

Celsius is the unit of temperature on the Celsius or centigrade scale. This unit can indicate the particular value of temperate on the Celsius scale or the difference between two temperatures.

Celsius is named after Anders Celsius a Swedish astronomer Anders Celsius. In 1742, he created a temperature scale that was the reverse of the Celsius scale. In 1743, Jean-Pierre Christin created the Celsius scale which was actually the reverse of the scale developed by Anders Celsius. In the reversed scale proposed by Jean-Pierre Christin, 0°C represented the freezing point of water and 100°C represented the boiling point of water.

Celsius is also referred to as Centigrade – derived from two Latin words centum, meaning 100, and gradus — meaning steps.

How to convert Celsius to Fahrenheit?

Here’s a simple equation by which you can easily convert Celsius to Fahrenheit:

T°F = (T°C * (9/5)) + 32


  • Convert 12 degrees Celsius to degrees Fahrenheit:

    T°F = (12°C * (9/5)) + 32
    = 21.6 + 32
    = 53.6 °F

  • Convert 40 degrees Celsius to degrees Fahrenheit:

    T°F = (40°C * (9/5)) + 32
    = 72 + 32
    = 104 °F

  • Convert 100 degrees Celsius to degrees Fahrenheit:

    T°F = (100°C * (9/5)) + 32
    = 180 + 32
    = 212 °F

Is Celsius better than Fahrenheit?

The answer to this question varies according to your preferences. However, Celsius is considered to be better than Fahrenheit as it gives the freezing and boiling points of water in round numbers, making it easy for you to remember. Also, it is best for science stuff as it is well-defined and the Kelvin scale is also based on Celsius. Furthermore, the majority of the countries are using Celsius as the unit for measuring temperature.

Which countries are using Celsius

Most of the countries are using Celsius for measuring temperature due to the widespread adoption of metric systems. The countries that don’t use Celsius are the USA, Palau, Bahamas, Belize, and the Cayman Islands.

Given below are the top 10 countries that use only Celsius for measuring temperatures.

  • France
  • Sweden
  • Italy
  • Ireland
  • Belgium
  • Japan
  • Cyprus
  • Norway
  • Ukraine
  • Spain

Common misspellings of Celsius

  • celcius
  • celcious
  • celius
  • celsious
  • celsyos
  • cellseas

Temperature scale

Temperature How it feels Interesting Fact
0°C Freezing Cold Water freezes at this temperature
15°C Cold Average Temperature of Earth
20°C Warm It is defined as the room temperature
30°C Hot Short-term temperature tolerance threshold of Cave beetle
37°C Hot Optimum temperature of a human body
40°C Very Hot Running at this temperature can cause dehydration
50°C Extremely hot Maximum chances of heat cramps and exhaustion
60°C Too hot to live in Used for the Pasteurization of milk
100 °C Boiling hot Boiling point of water
430 °C Sizzling hot Average temperature of Mercury
1170°C Hellish hot Eruption temperature of Kīlauea lava
1538°C Hellish hot Melting point of Iron
3000°C Hellish hot Temperature of Red Stars
5,505 °C Hellish hot Temperature of Sun
10,000°C Hellish hot Temperature of White stars

How do you convert Celsius to Fahrenheit in Python?

For example, let's convert 30 celsius degrees to fahrenheit:

celsius = 30
fahrenheit = (celsius * 9/5) + 32

print(celsius, 'Celsius =', fahrenheit, 'Fahrenheit')

How do you convert Celsius to Fahrenheit in JavaScript?

For example, let's convert 20 celsius degrees to fahrenheit:

let celsius = 20;
let fahrenheit = (celsius * 9/5) + 32;

console.log(celsius + " celsius = " + fahrenheit + " Fahrenheit");

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How do you convert Celsius to Fahrenheit in PHP?

For example, let's convert 25 celsius degrees to fahrenheit:

$celsius = 25;
$fahrenheit = ($celsius * 9/5) + 32;

printf("%s celsius = %.1f fahrenheit", $celsius, $fahrenheit);