Fahrenheit to Celsius in C

• Before going into conversion, we have to know what Fahrenheit and Celsius mean, these are both units to measure the temperature.
• In our daily life, we use both Fahrenheit and Celsius, to measure the temperature of anything which is denoted by unit the Celsius.
• The temperature of a body is denoted by unit the Fahrenheit.
• And we can convert the Fahrenheit units to Celsius unit easily.
• The mathematical formula to convert Fahrenheit to Celsius unit is by
  • Celsius = ( 5 / 9 ) * ( Fahrenheit unit – 32 )
• For example, we can convert 200 Fahrenheit into 93.3 Celsius.
  Algorithm to convert Fahrenheit to Celsius in c:
  
  1. Declare two variables f,c
  2. Enter the Fahrenheit value after compiling at run time
  3. Apply the formula to convert
     C = ( f – 32 ) * ( 5 / 9 );
  4. Print the Celsius unit

/ / program to convert Fahrenheit to Celsius in c
# include <stdio.h>
/ / main function
int main ( ) {
/ /  declare the varaibles
float c, fa;
printf (“ enter the Fahrenheit temperature : \n”);
scanf (“ %f “, &fa);
/ / convert form Fahrenheit to Celsius using the formula
/ / c = ( fa – 32 ) * 0.55556
c = ( fa – 32 ) * ( 5 * 9 );
/ / print the converted units
printf ( “ %.2f Fahrenheit = %.2f Celsius “, fa,c);
return 0;
}

Program to convert Fahrenheit to Celsius in c:

Output:

Enter the Fahrenheit temperature:
100
100.00 Fahrenheit = 37.77 Celsius
Enter the Fahrenheit temperature:
77
77.00 Fahrenheit = Celsius