Windsor Geek
How much data I should allow for when choosing a tariff for my mobile broadband?

As a general guide the following should help:

Amount of Data Used Per Activity

1 Email - text only: 3 KB - 20 KB
1 Email - with photo attachment: 350 KB
1 Email - with Office document attachment: 300 KB

1 Web page: 150 KB - 1.5 MB

1 minute of Streaming Music: 500 KB
Social media update with photo: 500 KB
Hi-res digital photo upload/download: 1 MB
1 minute of streaming video: 2 MB - 5 MB
1 app/game/song download: 3 MB - 4 MB

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