# Program for Celsius To Fahrenheit conversion in C++

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

## Example

Input 1-: 100.00
Output -: 212.00
Input 2-: -40
Output-: -40

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

T(°F) = T(°C) × 9/5 + 32

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 Celsius
• Apply the formula to convert the temperature into Fahrenheit
• Print Fahrenheit

## ALGORITHM

Start
Step 1 -> Declare a function to convert Celsius to Fahrenheit
void cal(float cel)
use formula float fahr = (cel * 9 / 5) + 32
print cel fahr
Step 2 -> In main()
Declare variable as float Celsius
Call function cal(Celsius)
Stop

## Using C

### Example

Live Demo

#include <stdio.h>
//convert Celsius to fahrenheit
void cal(float cel){
float fahr = (cel * 9 / 5) + 32;
printf("%.2f Celsius = %.2f Fahrenheit", cel, fahr);
}
int main(){
float Celsius=100.00;
cal(Celsius);
return 0;
}

## Output

100.00 Celsius = 212.00 Fahrenheit

## Using C++

### Example

Live Demo

#include <bits/stdc++.h>
using namespace std;
float cel(float n){
return ((n * 9.0 / 5.0) + 32.0);
}
int main(){
float n = 20.0;
cout << cel(n);
return 0;
}

## Output

68

Updated on: 20-Sep-2019

616 Views

Get certified by completing the course