One way is that you will require you to get into your code. You will have to access your current site directory via FTP and use your existing code as a starting point. From there you will need to create the necessary files for a WordPress theme and copy bits of code from the WordPress codex. This is fairly simple and straight forward if you have some experience with HTML, CSS, and a bit of PHP.
Convert any website to a WordPress blog. Your site can be built using a custom framework or static HTML files. As long as your website is online, we can convert it.
First of all please specify what is normal website refer to ?
On which technology yours normal website is build with ?
There will be two possibilities :
1) Existing website is in HTML or PHP/MySql than you can directly migrate the website into wordpress to follow general instruction. After set up and configure the wordpress on local host or on server.
For local host : You can choose any according to the need. for windows : Wamp , xampp . for mac : Lamp etc
2) If yours website is developed in other technology i.e java, asp.net etc then you have to develop and design wordpress website from scratch .
Evaluate your current website
Set up your WordPress installation
Import your content into your WordPress website
Test and debug as needed
Go Live
Revise as needed
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