C++ program to convert Fahrenheit to Celsius

To convert fahrenheit to celsius, use a simple mathematical formula. In this article, we are going to discuss the conversion formula, a simple example, and an easy example code.

We have been given a temperature in fahrenheit and our task is to convert the given temperature into celsius using C++.

Understanding Fahrenheit to Celsius Formula

The formula for converting the given temperature from fahrenheit to celsius is as follows:

celsius = (fahrenheit - 32.0) * 5.0 / 9.0; 

Let's see an example to convert the temperature given in fahrenheit to celsius using the above formula:

Input: Temperature in Fahrenheit: 122.0deg Solution: celsius = (fahrenheit - 32.0) * 5.0 / 9.0; celsius = (122.0 - 32.0) * 5.0 / 9.0 = 50deg Output: Temperature in Celsius: 50deg 

Program to Convert Fahrenheit to Celsius

The following program demonstrates the conversion of temperature given in fahrenheit to celsius:

#include<iostream> using namespace std; int main() { float fahrenheit = 100, celsius; cout << "The tempertaure in Fahrenheit is: " << fahrenheit << endl; celsius = (fahrenheit - 32) * 5 / 9; cout << "Equivalent Celsius temperature is: " << celsius << endl; } 

Fahrenheit to Celsius Conversion Using Custom Function

In this example, we have used a custom function toCelsius() and passed fahrenheit as an argument. The function returns the celsius value after conversion.

#include<iostream> using namespace std; float toCelsius(float fahrenheit) { return (fahrenheit - 32) * 5 / 9; } int main() { float fahrenheit = 100.0; float celsius = toCelsius(fahrenheit); cout << "Temperature in Fahrenheit: " << fahrenheit << endl; cout << "Equivalent Celsius temperature is: " << celsius << endl; }