C program to convert kilometer to cm, meter, feet and mile

C Program to convert kilometer to meter, cm, feet & mile:

By Ahmad Irshad | Programming Exercises and Solutions > Program to convert km to meter, cm, ft & mile.

Write a C program to to input distance in kilometer from user and convert it to meter, cm, feet, and mile. Let's have a look at the below example with step by step logic to convert km to meter, cm, feet, and mile. 

Before writing any program you just imagine about output screen first. Like what input to be given, and output to be displayed. Let's have a look at the below example.

1. INPUT
2. 
   
3. Enter distance [in kilometer] = 1
   

  OUTPUT

1 kilometers = 1000.00 m

1 kilometers = 100000.00 cm

1 kilometers = 3280.84 feets

1 kilometers = 0.6214 miles

Required knowledge for this exercise is: 

Basic Input output, Data Type, Arithmetic operators 

Logic to convert km to meter, cm, feet and mile:

1) Print a massage to the user like "Enter distance [in kilometer]:" using printf();

2) Input distance [in kilometer] from user and store it in a variable km using scanf();

3) Now convert  km to meter, cm, feet & mile using below farmula

meter = km * 1000.0; // since, 1km = 1000 m 

cm = km * 1000.0 * 100.0 // since, 1 km = 100000 cm

feet = km * 3280.84 // since, 1 km = 3280.84 feets

mile = km * 0.6214 // since, 1 km = 0.621371 miles

4) At last print the value of meter, cm, feet and mile. that's it!

Program to convert kilometer to meter, cm, feet & mile: 

1. /* C program to to convert kilometer to meter, cm, feet & mile */
   
2. #include <stdio.h>
3. 
   
4. int main() { float km, meter, cm, feet, mile; /* Input distance in kilometers from user */ printf("Enter distance [in Kilometers]: "); scanf("%f", &km); /* Convert km to meter, cm, feet and miles */ meter = km * 1000.0; // since, 1km = 1000 m
5. cm = km * 1000.0 * 100.0 // since, 1 km = 100000 cm
6. feet = km * 3280.84 // since, 1 km = 3280.84 feets mile = km * 0.6214 // since, 1 km = 0.621371 miles
7. /* Print the value of meter, cm, feet, & mile */ printf("%.2f Kilometers = %.2f m", km, meter);
8. printf("%.2f Kilometers = %.2f cm", km, cm);
9. printf("%.2f Kilometers = %.2f feets", km, feet);
10. printf("%.2f Kilometers = %.2f miles", km, mile);
11. return 0; }

%.2f is used to print real values only up to 2 decimal places. You can also use %f to print up to 6 decimal places by default.

Output:

1. Enter distance [in Kilometers] = 1
2. 1 kilometers = 1000.00 m
3. 1 kilometers = 100000.00 cm
4. 1 kilometers = 3280.84 feets
5. 1 kilometers = 0.62 miles

Next topic >> to be updated soon.

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