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Program to Convert Kilometres (km) to Centimetres (cm)

By Chaitanya Singh

In this guide, we will see programs to convert Kilometres to Centimetres in various programming languages such as Java, C, C++, Python, PHP. The kilometres and centimetres both are the unit of lengths.

Formula to convert Kilometres to Centimetres

cm = km * 100000

Multiply the km by 100000 to get the length in cm.

Input: .5 km
Output: 50000 cm

Java Program

// Java program to convert length given in Kilometres into centimetres
class JavaExample { 
  public static void main(String args []) 
  { 
    double km = 2; 
    double cm; 
    cm = 100000 * km; 
    System.out.println(km+ "km = "+cm+" cm"); 
  } 
}

Output:

2.0km = 200000.0 cm

C Program

#include<stdio.h>
int main()
{
  double km = 3, cm;

  //kilometres to centimetres conversion
  cm = 100000 * km;

  printf ("3 kilometres = %.2f centimetres", cm);

  return 0;
}

Output:

3 kilometres = 300000.00 centimetres

C++ Program

// C++ Program to Convert kilometres to centimetres
#include <iostream>
using namespace std;

int main(){
  double km, cm;

  // User is asked to enter the length in kilometres
  cout << "Enter the length in kilometres: ";
  cin >> km;

  // converting length from km to cm
  cm = km * 100000;

  // displaying length in centimetres
  cout << "The length in centimetre is: " << cm;
  return 0;
}

Output:

Enter the length in kilometres: 1.5
The length in centimetre is: 150000

Python Program

# Python program to convert length given in km to cm

km = float(input("Enter the length in kilometres: "))

# convert km to cm by multiplying the value in km by 100000
cm = 100000 * km;

print("The length in centimetre is: ",round(cm,3))

Output:

Enter the length in kilometres: .25
The length in centimetre is:  25000.0

PHP Program

<?php 
// PHP program for kilometres to centimetres conversion 
$km = 5.5; //length in kilometres
$cm = 100000 * $km; //conversion from km to cm
echo("The length in centimetres is: " . $cm); 
?>

Output:

The length in centimetres is: 550000

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