# How to write program convert temperatures from Celsius to Fahrenheit and vice versa

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```#include <iostream.h>
#include <conio.h>
void main()
{
clrscr();
int choice;
float ctemp,ftemp;
cout << “1.Celsius to Fahrenheit” << endl;
cout << “2.Fahrenheit to Celsius” << endl;
cout << “Choose between 1 & 2 : ” << endl;
cin>>choice;
if (choice==1)
{
cout << “Enter the temperature in Celsius : ” << endl;
cin>>ctemp;
ftemp=(1.8*ctemp)+32;
cout << “Temperature in Fahrenheit = ” << ftemp << endl;
}
else
{
cout << “Enter the temperature in Fahrenheit : ” << endl;
cin>>ftemp;
ctemp=(ftemp-32)/1.8;
cout << “Temperature in Celsius = ” << ctemp << endl;
}

getch();
}```

This program takes in the user’s choice choice as a screen input from the user.
It then asks the user for a temperature in Celsius or Fahrenheit depending on the choice.
It then converts the Celsius temperature to Fahrenheit or vice versa and prints it out using
the ‘cout’ command.
INPUT :
2
98.6
OUTPUT :
Temperature in Celcius = 37

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