Web Bandwidth Projection Puzzle

Hello Group,

Talks with my dedicated server hosting company and an hour on Google
havefailed to provide a detailed answer, so I turn to you in my hour
of frustration....

If I have a blank web page that is 1K in size and it gets 10 million
hits a day, how many gigs per month is my hosting company going to
bill me?

I could answer that question on my own, if you can help me answer this
question:

Is it true a 1K web page doesn't really weigh 1K when the following
HTTP/ TCP overhead is added on:

- request tcp packets
- incoming headers, maybe url params, maybe cookies
- response tcp packets
- response body (1K blank, no images), headers, url params,
cookies....
- any additional networking traffic going on for a single request?

How much do the factors above add to the weight of a 1K page? Then is
safe to assume I can take that final weight and do the math to get a
monthly cost?

Thank you in advance for your consideration.

Rick