smartine
asked on
What is the actual formula for converting download times to bps?
I figured it'd be pretty straightforward:
Get total bits by converting bytes to bits
Convert download time to seconds
Divide file size by time to get bps
So I went to this website:
http://www.bluemax.net/techtips/networking/Cable_Modems/Speed/cblmdmdwnload.htm
I entered my numbers in the "reverse DL" section to get the results and it differed from what I calculated.
Here's what I did for a 20MB file:
20MB * 1024 = 20480000000 bits
5:20 = 230 seconds
20480000000 / 230 = 89Kbps / sec
The website says it's actually 729Kbps per sec...
I need more coffee... missing something simple, I'm sure...
Thanks!
-Samson
Get total bits by converting bytes to bits
Convert download time to seconds
Divide file size by time to get bps
So I went to this website:
http://www.bluemax.net/techtips/networking/Cable_Modems/Speed/cblmdmdwnload.htm
I entered my numbers in the "reverse DL" section to get the results and it differed from what I calculated.
Here's what I did for a 20MB file:
20MB * 1024 = 20480000000 bits
5:20 = 230 seconds
20480000000 / 230 = 89Kbps / sec
The website says it's actually 729Kbps per sec...
I need more coffee... missing something simple, I'm sure...
Thanks!
-Samson
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ngravatt corrected you on the conversion from MB->bits, however 5:20 is 320 seconds, not 230 seconds :)
Cheers
Cheers
Ah, someone got it as i typed it in, lol.
Cheers
Cheers
ASKER
Like I said... needed more coffee... :)
Many thanks!
-Samson
Many thanks!
-Samson
Mb = MegaBYTES
8 bits = 1 byte
1 Mb = 1024 Kb and 1Kb = 1024 bytes
so 20Mb = 20480 Kb = 20,971,520 bytes = 167,772,160 bits
167,772,160 bits / 230 secs = 729,444 bits/sec