Finding your WordPress blog URL is easy. In the administrative area of your blog, click on “Settings” and then “General.” In the “Blog address” box, type in the address of your blog, minus the http://. For example, if your blog address is http://www.
PRO TIP: If you are planning to move your WordPress blog to a new host or change the domain name, it is very important that you take a backup of your blog first. You can use a plugin like BackupBuddy or WP Clone to create a complete backup of your WordPress blog. Once you have taken a backup, you can proceed with finding your WordPress blog URL.
myblog.com, your blog URL would be http://www.myblog.com/.