Before conversion we have to know about Fahrenheit and Celsius.
Fahrenheit conversion established from 0ºF as the stabilized temperature when equal amounts of ice, water, and salt are mixed. He then defined 96ºF as the temperature 'when the thermometer is held in the mouth or under the armpit of a living man in good health'.
Celsius conversion established when 0ºC and 100ºC are arbitrarily placed at the melting and boiling points of water and standard to the metric system.
Fahrenheit is a temperature scale used for describing temperatures in Fahrenheit degrees like (°F). It is most commonly used in the United States in weather forecasts and to describe temperatures inside houses, offices, etc and take necessary steps depending on this temperature.
Celsius is also a temperature scale that describes temperatures in Celsius degrees like (°C) and it is used in all over the world for determining temperature.
A 1 Celsius change is a change of 1.8 Fahrenheit's while a 1 Fahrenheit change translates to a change of 0.55 Celsius. This is one of the easiest ways to convert them if you know that 0°C = 32°F this is most important for Farenheit to Celsius Conversion.
100°F is really hot in the summer and it is 38°C so when people talk about a 100°F heat wave, it means the whether is so hot.
Average temperature of whether is started from 28 to 32 Celsius that means 82.4 to 89.6 degree Fahrenheit. This is most important to know this calculation for Fahrenheit to Celsius Conversion. Basically over 100 degree Fahrenheit is not ensuring living temperature.
Anyone can convert Fahrenheit to Celsius Conversion if it is necessary. The people who want to convert such types of conversion there has many online website from which any one can convert very easily. Basically this conversion is important for whether forecaster but as a careful person you may also take some decision by conversion. I can mention here one of this website from which anyone can convert that is Fahrenheit toCelsius.com