Is there a site that helps you calculate the "cost of living" in a particular area?

I live in Illinois, I have heard it is “cheaper” to live in Wisconsin or Florida, or Missouri; but show me! Assuming the same life style; what are the confirmable items you can calculate to determine more or less expensive to live. For example the following can be confirmed for any local area: real estate taxes, sales tax (and on what items, i.e. some areas don’t have sales tax on food), auto registration fee, state income taxes, local income taxes, special area taxes (like for historic areas, mass transit districts etc), utility rates, electric, gas, water, sewer, trash, state gasoline taxes, insurance rates on cars and homes, rent rates, etc. Flutherites what else can we think of to calculate from third party confirmable sources. Realistically, food, clothes, appliances, autos, furnishings will all be pretty equal no matter where one lives.