# Regarding required bandwidth

• computer
• Student
• Joined: Oct 12, 2004
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May 13th, 2008, 7:13 am

Hi all

I don't have any idea about Bandwidth/hosting etc.

But I want to know, what is the criteria for Bandwidth ?
How can one calculate required Bandwidth for his/her site ?

Suppose if there are more than 500 users than what would be the required Bandwidth ?

Thanks
• Anonymous
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May 13th, 2008, 7:13 am

• joebert
• Sledgehammer
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May 13th, 2008, 8:28 am

Generally you take the average number of bytes per-request, multiply that by visitors, and you have a very, very, rough estimate.

For instance if the average webpage is 50K, and that webpage loads 500K worth of media such as images, & external JS/CSS, that's 550K per-visitor.

At 500 visitors you have 550*500=275,000K or 268.5M.

If that 500 visitors is per-hour, you divide 268.5M by 3600 which is the number of seconds in one hour.

268.5/3600 = 0.07M per-second

Alternatively, you can multiply that 268.5M by 744 which is the number of hours in 31 days.

268.5*744 = 199,764M or 195.08G per-month.
Strong with this one, the sudo is.
• computer
• Student
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May 14th, 2008, 4:16 am

Hi joebert,

Its more than enough for a beginner

• trevHCS
• Novice
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May 18th, 2008, 9:03 am

Best advice without any maths is simply find a host who offer multiple packages so you can upgrade your account if you start to run out of bandwidth.

The actual amount depends on what you're hosting, eg: for YouTube you might need quite a lot, but for HTML files then very little.

Start off on say one of the smaller packages and then move up as necessary and as your budget allows. Ideally find one that also does VPS and dedicated servers too.

Trev
• thevali
• Newbie
• Joined: May 26, 2008
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May 26th, 2008, 1:43 am

Hi,
Could you offer some info regarding bandiwdth for videochat? We added this feature on our site and we think the bandwidht needs upgrade but we are not sure how to calculate it... the # of visitors, clicks are not a good counter
Thanks
Vali
• joebert
• Sledgehammer
• Joined: Feb 10, 2004
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• Loc: Florida
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May 26th, 2008, 1:00 pm

thevali wrote:
Hi,
Could you offer some info regarding bandiwdth for videochat? We added this feature on our site and we think the bandwidht needs upgrade but we are not sure how to calculate it... the # of visitors, clicks are not a good counter
Thanks
Vali

You're not going to be calculating bandwidth totals with video or audio, you're going to be dealing with line speed/capacity. As in MB/GB per-second.

You need to determine the bitrates used by your video/audio software & multiply that by the number of visitors using it at the same time. That will give you a rough estimate for the line speed/capacity you need. You can use an average number of visitors in the calculation, but unless your line supports what's usually refered to as "burstable" speed/capacity/etc using the an average max (ie what would commonly be a high number of visitors for you) is better.
Strong with this one, the sudo is.

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