Convert feet to meters with C language

#include <stdio.h>
int main()
{
    double meter, feet;
    printf("Enter feet : ");
    scanf("%lf", &feet);
    meter = feet / 3.2808399;
    // here .2lf means it will show 2 digits after the decimal number.
    printf("meter: %.2lf", meter);
    return 0;
}

Output:-

Enter feet : 50
meter : 15.24