If you have decided to move from Blogger to WordPress, you’ll notice that WordPress would change your URL structure (often known as Permalinks or slugs in WP).

There’s however a simple solution to force WordPress to use the same permalinks as created by Blogger – it involves changing a line of code near the wp_insert_post function in the blogger.php file available in the wordpress/wp-admin/import/ folder.

Arpit has created an easy-to-follow guide on implementing this change in WordPress here. [should work on Self hosted wordpress blogs]