I am appauled to find most comcast customers don't use 90 percent of thier possible bandwidth! If you use ~10Mb/s or higher you are in this category. Although fast speeds are nice for video streams and file downloads, you may find yourself getting capped rather fast. On my 25 Mb/s connection it would be possible to reach my 250 GB cap within 23 hours! I read many comments here because I am concerned of the final cost that I and my family will have to pay at $1 per GB after the transfer cap is reached, as some comcast letters have indicated. The final column in the spreadsheet calculated this, with astoundingly high results. If you had 100Mb/s download speed and used it for the whole month at 100%, you would owe comcast over 32,000 dollars for the 32 terabytes you downloaded, assuming 1 dollar per GB. This also assumes that your are at least in your 4th month of hitting your transfer cap. I told comcast's rep to call me when I reach the point that the bandwidth is too high, and she replied she can't, its outside of policy. SO, when I get sued the contractually obligatory 1555 dollars for using the 25Mb/s connection relentlessly, comcast won't even have the decency to call and tell me that I now owe more on my internet connection anything else in my life that month. As requested, here is a simplified table for time to reach data cap under various speed in days. Time to reach download cap at various speeds Cap:300GB Cost per GB after cap: $0.20
Speed of Incoming Connection Time to use transfer cap
Mb/s B/s seconds hours Days
1 12.2E+04 2457600 682.7 28.4
5 61.0E+04 491520 136.5 5.6
15 01.8E+06 163840 45.5 1.89
25 03.1E+06 98304 27.3 1.13
50 06.1E+06 49152 13.7 0.56
100 12.2E+06 24576 6.8 0.28
200 24.4E+06 01.2E+04 3.4 0.14
Cap Amount 1
GB Bytes 1 Byte (B) =8.192 bits (b)
300 3E+11
Percent of Bandwidth Dollar Cost of
Wasted Every month Max Data use
Mb/s Percent Wasted Max Data Final Bill 2,3
1 6.6% 0.3 TB $ 14.21
5 81.3% 1.6 TB $ 271.05
15 93.8% 4.8 TB $ 913.14
25 96.3% 8.0 TB $1555.23
50 98.1% 16.1 TB $ 3160.45
100 99.1% 32.1 TB $ 6370.90
200 99.5% 64.2 TB $ 12791.80
Assumptions
1 Cap Amount is subtracted from max data
2 Cap data is subtracted from bill
3 $0.20 per GB after cap is reached As requested, here is a simple table for how long it takes to reach data cap in days. at 25 Mb/s it takes 1.14 days with a 300GB data cap, at 100, it only takes 1/4 of a day.
Mb/s Days
1 28.44
5 5.69
15 1.90
25 1.14
50 0.57
100 0.28
200 0.14
... View more
