Calculators

American Express. This site has some very easy-to-use calculators for solving many personal finance problems. It allows you to develop savings plans using the future value and annuity formulas. http://www10.americanexpress.com/sif/cda/page/0,1641,797,00.asp?

Bloomberg.com: This site offers several useful calculators, 401K calculator, currency calculator, mortgage calculator, lease/buy calculator, education costs calculator and more. http://www.bloomberg.com/analysis/calculators/currency.html

BYG Publishing. This site has an online book on personal finance titled "Understanding and Controlling Your Finances" by Marshall Brain. The site includes a number of great calculators for weekly investments, retirement and 401 (k) investments at http://www.bygpub.com/finance/calculators.htm

Bureau of the Public Debt Online. This site has a useful calculator to determine the value of a Series EE savings bond. http://www.publicdebt.treas.gov/sav/savcalc.htm

CNN Money: Another useful site with a range of calculators that will allow you to calculate college savings, help access how much life insurance you need, how fast your savings grow and convert currency for you. http://cgi.money.cnn.com/tools/

Cuna & Affiliates: This site offers a variety of calculators: auto, home mortgage, retirement and budget allowing you to plug in your own numbers in different what-if scenarios. http://www.creditunion.coop/

HSH Associates, Financial Publishers: A very nice site offering an amortization schedule calculator that allows you to see the effect of prepayment on your loan, various scenarios in refinance decisions, an income qualification calculator when you consider purchasing a house. An easy to use tool for your various financial decisions. http://www.hsh.com/calculators.html

Martindale’s "The Reference Desk." At last visit, this site had links to over 6,000 calculators found on the Internet. Only a small portion of this site is devoted to finance. If it doesn’t have a link to what you need, it probably doesn’t exist. http://www.martindalecenter.com/Calculators1B.html

Mathematics of Individual Finance. A smaller group of calculators for most present value, future value, annuity, bond, and amortization problems can be found here. http://www.busadm.mu.edu/mandell/mif.html

Moneychimp. Another easy-to-use calculator for most present value problems. http://www.moneychimp.com/

USAtoday. This site includes some useful calculators and links to others. However, the site has many other features which make it a bit hard to use. http://www.usatoday.com/money/perfi/calculators/calculator.htm

Quicken.com: This site offers a tax calculator on investments, nonqualified stock options calculator, W-4 calculator and marginal and average tax rate calculator. http://www.turbotax.com/calculators/?src=www.quicken.com