Program for Fahrenheit to Celsius conversion in C

Given with temperature ‘n’ in Fahrenheit and the challenge is to convert the given temperature to Celsius and display it.

Example

Input 1-: 132.00
Output -: after converting fahrenheit 132.00 to celsius 55.56
Input 2-: 456.10
Output -: after converting fahrenheit 456.10 to celsius 235.61

For converting the temperature from Fahrenheit to Celsius, there is a formula which is given below

T(°C) = (T(°F) - 32) × 5/9

Where, T(°C) is temperature in Celsius and T(°F) is temperature in Fahrenheit

Approach used below is as follows

• Input temperature in a float variable let’s say Fahrenheit
• Apply the formula to convert the temperature into Celsius
• Print celsius

Algorithm

Start
Step 1-> Declare function to convert Fahrenheit to Celsius
float convert(float fahrenheit)
declare float Celsius
Set celsius = (fahrenheit - 32) * 5 / 9
return Celsius
step 2-> In main()
declare and set float fahrenheit = 132.00
Call convert(fahrenheit)
Stop

Example

Live Demo

#include <stdio.h>
//convert fahrenheit to celsius
float convert(float fahrenheit) {
float celsius;
celsius = (fahrenheit - 32) * 5 / 9;
return celsius;
}
int main() {
float fahrenheit = 132.00;
printf("after converting fahrenheit %.2f to celsius %.2f ",fahrenheit,convert(fahrenheit));
return 0;
}

Output

IF WE RUN THE ABOVE CODE IT WILL GENERATE FOLLOWING OUTPUT

after converting fahrenheit 132.00 to celsius 55.56

Updated on: 18-Oct-2019

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