For new
website hosting to get rough estimate bandwidth usage manually, multiply the size of an average HTML page say for example (20.9k that you have) plus the combined size of images ( example there are 4 image at the top ie 5k total ) included in the page, by the number of pages in your web
website hosting for example if you have 60 pages and multiply that number by the number of visitors ( for example 50000 visitors ) you will have in a month, for safer size add 10 % more.
It will like this; 20.9+5x60x50000x10% = 7.77 GB so You can look for 10 GB Bandwidth
I may be wrong though but it may work to get a rough estimate especially for a new
website hosting.
