An important step in getting your new consulting business off the ground is to figure out what your rate sheet is going to look like. Sure, you want to help people with your expertise, but the work is also about growing a business and making money, right?
Even if you're offering some of the best services around, if your pricing is too high, people may not find it a good value and go elsewhere; too low and your bottom line could suffer.
So consider the three Cs of pricing, taking into account your costs, what the competition is doing, and your prospective clients' expectations. From there, you should have a good ballpark for setting the appropriate prices to attract clients.

I just created a free online consulting calculator and thought About.com readers might find it useful:
Consulting Fees Calculator
I can not agree with that !