Disk space is essentially the disk space provided by the hosting account in order to accommodate and hold all files that constitute the website including HTML files, graphics, scripts, and multi-media content. The disk space and bandwidth you receive depends on the price of the hosting package. The more you pay for the services, more disk space and bandwidth you are entitled to.
A web site with basic content and comprising of a few pages, ordinarily occupies less than 1 MB of disk space. However, downloadable files, pictures, music, and video as well as email, takes up extra disk space. Most often spam tends to occupy the necessary disk space, so it is recommended to empty out your inbox at regular intervals.
In case your website is occupying more disk space than what you are allotted; chances are that you will be charged for the extra space used. That is a policy that almost every web host company follows strictly. So it is advisable to either keep a regular check on your disk space to avoid paying a penalty or delete unnecessary files that are eating away your disk space. Better still, would be to purchase extra disk space if the above options seem unavoidable.
So how exactly do you determine how much disk space you are using? Most of the web hosting companies offer the feature of a control panel in your account. Through this control panel you can find out exactly how much disk space is occupied by your website as well as if your disk space is reaching its allotted limit. If your hosting account does not offer this feature, then you have the option of downloading your entire web site to a folder on your personal computer and then check the disk space occupied by the website.
An average web page (3 graphics and 2 screen lengths of text) takes up about 20 kb or less. Therefore, a hosting package with 10 MB can have about 500 pages. Since most of the average small websites comprise of roughly less than 50 pages, 10 MB should be sufficient to start off with. As far as the databases are concerned, they are usually calculated separately from your disk allotment. However, it is advisable to check with the web host about this policy.
Music and video files take up more disk space. A typical 3 minute MP3 file takes about 2.5 to 3 MB of disk space. A short video (very poor quality) can take 1 MB of disk space. It is advisable to judge the total size of your multimedia files and then get an account that offers double the amount of space. However, it is recommended to check with your web host before placing sound or video files on your website as certain hosts do not allow this. It places a strain on the bandwidth allotment and hence they carry certain policies which prohibit you to do so.