Use the format %f for printing floating numbers : float number « Data Type « C Tutorial

1. C Tutorial
2. Data Type
3. float number

#include <stdio.h>

main()
{
    float f1 = 0.23456;

    printf("%f \n", f1);
}

By default, %f prints output with 6 decimal places

To output with 8 columns and 3 decimal places

#include <stdio.h>

main()
{

    float f1 = 123456789.23456;

    printf("%f \n", f1);
    printf("%8.3f \n", f1);
}

123456792.000000
      123456792.000