BankRate.com - Use this calculator to compare the cost of living between U.S. cities.
"Free access to online calculators to help you solve problems an answer questions in the home, office, and school. There are calculators for finance, business, and science. There are ones for cooking, hobbies, and health. Some solve problems, some satisfy curiosity, and some are just for fun. All put the answer easily within your reach."
Convert 75 different world currencies. The answer will be given in the direction asked for and in reverse in the case of user input error.
Financial and Mortgage Calculators
CalculatorPlus is a comprehensive source of free online financial calculators - mortgage loans, credit card and other calculators.
Over 60 different financial calculators are accessible from this one page. Topics include inventing, managing, spending, credit, stocks, cars, college, insurance, and taxes.
and English Conversion Utility
Convert English and metric measurements easily.
MortgageLoan.com - Over 100 Personal Finance Calculators
This currency site provides up-to-the-minute currency and foreign exchange rates to investors travelers and online businesses.
This site converts almost any measurement in anyway possible.
Sperling's BestPlaces - This site does a different kinds of cost of living comparisons.
Post Office's Online Postage Rate Calculator
Retrieve the correct postage amount to send your letter or package based on how quickly you would like it to get there and what additional services you require. Both domestic and international calculators are available.
"This gazetteer is used to identify places to view with the Tiger Map Server and obtain census data from the 1990 Census Lookup Server. You can search for places, counties, or MCDs by entering the name and state abbreviation, or 5-digit zip code."