C Program to Convert Celsius to Fahrenheit

How to write a C program to convert Celsius to Fahrenheit with an example. The formula behind the temperature conversion of Celsius to Fahrenheit in C is: Fahrenheit = (9/5) * Celsius) + 32

C program to convert Celsius to Fahrenheit

This C program to change Celsius to Fahrenheit lets the user enter the temperature value in Celsius. Next, we are going to convert the user-specified temperature in Celsius to Fahrenheit in C.

```#include <stdio.h>

int main()
{
float celsius, fahrenheit;

printf("Please Enter temperature in Celsius: \n");
scanf("%f", &celsius);

// Convert the temperature
fahrenheit = ((celsius * 9)/5) + 32;
// fahrenheit = ((9/5) * celsius) + 32;
// fahrenheit = ((1.8 * celsius) + 32;

printf("\n %.2f Celsius = %.2f Fahrenheit", celsius, fahrenheit);

return 0;
}```

Within this C program to change Celsius to Fahrenheit example, the following statements will ask the user to enter the temperature value in Celsius. And the scanf statement in this C program will assign the user entered values to declare variable already Celsius.

```printf("Please Enter temperature in Celsius: \n");
scanf("%f", &celsius);```

We can use any of the below-specified formulas to convert the temperature in Celsius to Fahrenheit

fahrenheit = ((celsius * 9)/5) + 32
fahrenheit = ((9/5) * celsius) + 32 => ((1.8 * celsius) + 32;

Last C programming printf statement will print the output

`printf("\n %.2f Celsius = %.2f Fahrenheit", celsius, fahrenheit);`

Let me show you the Fahrenheit value of Zero Celsius

``````Please Enter temperature in Celsius:
0

0.00 Celsius = 32.00 Fahrenheit``````