Figuring viewing hours at 100 kbps for 100 GB of transfer

[Derrick217]

Hey,

I'm trying to determine the viewing hours with a stream at 100 kbps for 100 GB bandwidth tranfer.

Here's the formula I'm using.

To determine the viewing hours I can get for 100 GB of transfer:

For example with 100 GB:
I'm taking the total amont of
kilobits in 100 GB which is 838900000.
I divide the amount of total
kilobits by how many kilobits in a minutes which for 100 kbps is 6000. So
I divide 838900000 by 6000 and get the total minutes which = 139816. I
then divide the total minutes by 60 to get the total hours which = 2330
hours.

Does this sound correct? I'd appreciate your thoughts thanks. If someone has a an easy conversion tool
or link I'd love to get it thanks.

[stephanV]

You should have a bit more. 1kbit = 1000 bits, not 1024.

2330*1.024 = 2386

[Derrick217]

Stephan,

Can you explain further and give me your formula. I have converted the 100 GB to kilobits not kilobytes. Thanks for your thoughts

Derrick

You should have a bit more. 1kbit = 1000 bits, not 1024.

2330*1.024 = 2386

[stephanV]

Sure.

100 GB = 102,400 MB = 104,857,600 KB

104,857,600 KB * 1.024 * 8 = 858,993,459.2 kbit ( -> 1024 bytes per kilobyte, 1000 bits per kilobit = 1024/1000; 8 bits per byte)

858,993,459.2 kbit / (100 kbit/s * 3600 s/hr) = 2386.1 hr

Thats about all.

[Derrick217]

Stephan,

What's your thoughts on where I went wrong on my conversion? It seems like it was by not working from the total number of bits in 100 GB. I was working from kilobits and it seemed like there was one extra conversion that I didn't do. Appreciate your thoughts .

[stephanV]

Like I told you before, you went from kilobytes to kilobit by multiplying by 8, which is wrong since the kilo in kilobyte means 1024 and the kilo in kilobit means 1000.

I'm sorry, but I can't explain it any better than this. I could only advise you to convert kilobytes to bytes first and then go to bits and kilobits, maybe that will make it more clear for you.

[Derrick217]

Thanks

[Inventive Software]

He's right. I made the same mistake calculating bitrates for my first codec test. ;)