Now that most cellular carriers have imposed a 5GB data limit per month, how much exactly is that?    We have compiled the following  estimates of how much data many common tasks consume:

1.6 Million Emails  3 KB each (with no attachments)

71,000 Word Documents 70 KB each

33,000 Web Pages Lookup  150 KB each

10,000 Low Res Photos 500 KB each

1,600   Power Point Presentations  3 MB each

1,600 3 Minute Songs 3 MB each

300  3 Minute U-Tube Videos  15 MB each

29   Hours of Skype Video Calls 169 MB each

14 30 Minute TV Shows 350 MB each

3 Movies 1.5 GB each (fewer if high def)

You can mix and match tasks to estimate your actual usage.