rcalc> 30*1024
Ans = 30720 <=--------- That's his Connection Mbit/s
rcalc> (30720/8)-2
Ans = 3838 <=---------- That's his Download rate MB/s
rcalc> 100000/3.838
Ans = 26055.2371027 <=- That's how many seconds does it take to fill a 100GB HDD
rcalc> 60*60
Ans = 3600 <=---------- That's how many seconds in 1 hour
rcalc> 26055.2371027/3600
Ans = 7.23756586186 <=- That's how many hours in 26055.2371027 seconds
rcalc> 60*.23756586186
Ans = 14.2539517116 <=- That's the minutes equivalent of 0.23756586186 of the hour
rcalc> 60*.2539517116
Ans = 15.237102696 <=-- That's the seconds equivalent of .2539517116 of the minute
7hrs 14mins 15secs