Here is an example of the maximum transfer you can have, first you multiply these figures: Mbit rate (x) 3600 [seconds in an hour] (x) 24 [hours/day] (x) 30 [days/month] (Divided by) 1000 [convert to Gbits]. Oh, then convert to GByte: Divide by 8. [bits in a byte]

Ok, let me put it in a simple chart, here is the maximum amount of transfer for a given connection: