Bandwidth is the level of traffic, and amount of data that can transfer between your site, users, and the Internet.
The more bandwidth you get, the faster and the better these three factors will be:
How to Calculate the Bandwidth you Need
Consider that, the bigger and more complicated your web design, the more bandwidth will be used up. In bandwidth, it also doesn’t make sense to purchase up. As for buying small, that’ll only get you into trouble. Know your actual need to get the service that works for you – here’s how to calculate your required bandwidth: