Can anyone tell me how to calculate bandwith like 1Mbps=320GB per month.

http://www.webhostingtalk.com/showthread.php?s=&threadid=12312&highlight=calculate+bandwith

I've seen other threads about this as well...

You didnt replyl to me email

:(

To be accurate, we take 1 Mbit as 1024 Kbps (kilobits per second).
There are 60 seconds in a minute, 60 minutes in an hour, and 24 hours in a day, assuming 30 days in a month.

Thus, you get :

1024 X 60 X 60 X 24 X 30 = 2654208000 Kbps.

But 8 bits = 1 byte .

Dividing the aggregate amount earlier, you get 331776000 Kilobytes.

To calculate Kilobytes into Megabytes, we divide the * KB with 1024.

You will get 331776000/1024 = 324000 MB
To get it into GB, divide it again with 1024. You will get the accurate value to be around 316.40625 GB.

This would be the figure if you take 1 Mbit as 1024 Kbps and assuming 30 days.

So, if you calculate it using 31 days, you will get around this value : 326.953125 GB.

Taking the Average expected value of the bandwidth amount : you will get around 321.6796875 GB.

Hope this helps you.

Originally posted by jolly
You didnt replyl to me email

:( :eek:

Why doesn't this forum show the original posts below the reply box?

<<MOD NOTE:>>
It used to, I don't know why that is happening either but will look into (it is annoying me too).
<</MOD NOTE>>

Anyway, in reply to the "1 MBPS==1024 kBPS" post, this depends on what your upstream provider consideres a "k" or "M". Some use 1024, others use an even 1000...

A T1 is 24 DS0 channels. A single DS0 channel is one voice line, and is equivelent to 64000 bits per second. Voice lines are digitized at 8000 Hz sample rate, 8 bit resolution, thus it's 64000 bps, not 65536.

So a T1 carries 64000 x 24 == 1536000 bps. How you break that down depends on who's dividing (eg, whether you use 1024 or 1000)...

This complicates things since it depends on who you talk to. Commonly a T1 is referred to as being 1.544 Mbps, and I'm not quite sure where that number comes from...

The best thing to do is get an accurate bit per second rating on a line. If you hear kbps or Mbps, make sure to find out what their version of k and M are... it reminds me of hard drive manufacturers, which always use multiples of 1000...