C++ program to convert fahrenheit to centigrade can be implemented by using following formula

$C = \frac{(F-32)*5}{9}$

Here, value of $F$ is the temperature in fahrenheit while $C$ is the temperature in centigrade.

Fahrenheit and Centigrade are two well known temperature scales. Both of them are used regularly in daily temperature measurements. By using above formula, the following C++ program produces output in celcius ($^{\circ}C$) while taking fahrenheit ($^{\circ}F$) as input.

## 1. C++ Program & output to convert fahrenheit to centigrade

Code has been copied
/***********************************************
alphabetacoder.com
C++ program to convert Fahrenheit to Centigrade
***********************************************/

#include <iostream>

using namespace std;

int main()
{
// declare variables
double f,c;

//take input in fahrenheit
cout<<"Enter the temperature in fahrenheit = ";
cin>>f;

//convert fahrenheit to celcius
c=5*(f-32)/9;

// display result
cout<<"Temperature is "<<c<<" in centigrade When "<<f<<" in fahrenheit.";
return 0;
}


Output

Enter the temperature in fahrenheit = 212

Temperature is 100 in centigrade When 212 in fahrenheit.