Convert Bytes to KB, MB, GB, TB - java

Converter.java

class Converter{
    public static void main(String[] args) {
        System.out.println(getSize(1048576));
    }
    public static String getSize(long size) {
        long n = 1024;
        String s = "";
        double kb = size / n;
        double mb = kb / n;
        double gb = mb / n;
        double tb = gb / n;
        if(size < n) {
            s = size + " Bytes";
        } else if(size >= n && size < (n * n)) {
            s =  String.format("%.2f", kb) + " KB";
        } else if(size >= (n * n) && size < (n * n * n)) {
            s = String.format("%.2f", mb) + " MB";
        } else if(size >= (n * n * n) && size < (n * n * n * n)) {
            s = String.format("%.2f", gb) + " GB";
        } else if(size >= (n * n * n * n)) {
            s = String.format("%.2f", tb) + " TB";
        }
        return s;
    }
}