C Program to convert temperature from celsius to fahrenheit

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C Program to Convert Temperature from Celsius to Fahrenheit

  • Write a C program to convert temperature from celsius to fahrenheit.
  • Write a C program to convert temperature from fahrenheit to celsius.
Given a temperature in Celsius, we have to convert it to fahrenheit and print it on screen. To convertcelsius to fahrenheit, we will use below expression:
F =(9/5)*C + 32;
where, C is the temperature in Celsius and F is temperature in Fahrenheit.

C program to convert temperature from celsius to fahrenheit

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/*
* C program to convert temperature from celsius to fahrenheit
*/
#include<stdio.h>
#include<conio.h>
 
int main() {
    float fahren, celsius;
 
    printf("Enter the temperature in celsius\n");
    scanf("%f", &celsius);
 
    /* convert celsius to fahreneheit
  * Multiply by 9, then divide by 5, then add 32
  */
    fahren =(9.0/5.0) * celsius + 32;
 
    printf("%.2fC is equal to %.2fF\n", celsius, fahren);
     
 getch();
 return 0;
}
Program Output
Enter the temperature in celsius
15
15.00C is equal to 59.00F

Enter the temperature in celsius
0
0.00C is equal to 32.00F

C program to convert temperature from fahrenheit to celsius

In this program, to convert fahreneheit to celsius we are using below expression:
C = (F - 32)*(5/9);
where, F is temperature in fahreneheit and C is temperature in celsius.
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/*
* C program to convert temperature from fahrenheit to celcius
*/
#include<stdio.h>
#include<conio.h>
 
int main() {
    float fahren, celsius;
 
    printf("Enter the temperature in fahrenheit\n");
    scanf("%f", &fahren);
 
    /* convert fahreneheit to celsius
  * Subtract 32, then multiply it by 5, then divide by 9
  */
    celsius = 5 * (fahren - 32) / 9;
 
    printf("%.2fF is equal to %.2fC\n", fahren, celsius);
     
 getch();
 return 0;
}
Program Output
Enter the temperature in fahrenheit
0
0.00F is equal to -17.78C

Enter the temperature in fahrenheit
98.6
98.60F is equal to 37.00C

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