C Program to Convert Number of Days to Week, Months and Years

Write a program in C to convert Number of Days to Days, Weeks, Months and Years.

Required Knowledge

We will first take number of days as input from user using scanf function then convert to Days, Weeks, Months and Years using following conversion equations.

  • 1 Year = 365 Days
  • 1 Month = 30 Days
  • 1 Week = 7 Days

C program to convert number of days to days, weeks, months and years

 * C program to convert Numer of Days to 
 * Year, Month, Week and Days 
#include <stdio.h>  
int main() {  
    int inputDays, years, months, weeks, days;  
     * Take number of days as input from user
    printf("Enter number of Days\n");  
    scanf("%d", &inputDays);  
     * 1 Year = 365 Days, 1 Month = 30 Days, 1 Week = 7 Days
     * To keep things simple, We are not considering Leap years 
     * and assuming 1 Month = 30 Days   
    years = inputDays/365;
    // Remaining days after year
    inputDays = inputDays - years*365; 
    months = inputDays/30;
    // Remaining days after month
    inputDays = inputDays - months*30; 
    weeks = inputDays/7;
    // Remaining days after week
    inputDays = inputDays - weeks*7; 
    days = inputDays;
    printf("Years : %d\n", years);  
    printf("Months : %d\n", months);  
    printf("Weeks : %d\n", weeks);  
    printf("Days : %d", days);  
    return 0;  

Enter number of Days
Years : 1
Months : 1
Weeks : 0
Days : 5

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