The examples below provide a general guideline for the amount of data used per service:
Browsing Internet: 1 webpage = 1 MB
Stream videos, TV, or movies: 1 min = 2MB
Online Gaming : 1 min = 350 KB
Apps or games download : one app / game = 5 MB
Music streaming & downloads : 1 min = 1 MB
Instant Messaging : 1 min = 33 KB
Emails : 1 email = 15 KB
Emails with attachment : 1 email with attachment = 500 KB
Upload and Download Photos : one social media post with photo = 500 KB
The above examples are based on averages and are estimates only.
The actual amount of data used for the described activity can vary significantly.