Well I've done some looking online, and I've found one website that may have the answer you are looking for, carrying a list of possible programs. One such program is ESPlannerBASIC, but the only true answer I can give is to search for them online yourself, and to choose which one you like best.
Retirement Nestegg Calculator Do you know how much it takes to create a secure retirement? Use this calculator to help determine what size your retirement nestegg should be.
"AARP does offer a retirement income calculator. This calculator is found under AARP's ""Planning Retirement Income"" and the calculator is located right there."
I recommend http://www.money-zine.com/Calculators/Retirement-Calculators/CSRS-Retirement-Calculator/ as a brilliant calculator for working out your retirement amount.
If you are planning on going into retirement, the best way you can prepare is by using a retirement tax calculator. Kiplinger offers a very easy to use tax calculator. This tax calculator can save you the heartache of realizing that you owe a lot of money when retirement rolls around. Some retirees are shocked to find that their pension plans require that they pay a certain portion of taxes every year. If you want to avoid being shocked upon retirement, then try to plan ahead as early as possible. Use the Kiplinger tax calculator and understand your financial situation.
Your best bet is to go to google.com and type in "retirement planning calculator". Finra.org has a great one that is set up with a calculator right on the site and it has explanations for every question that they ask of you and that explains every value you will have to input into the calculator.
The FERS retirment calculator is the "Federal Employees Retirement System Calculator". Presumably, it is used to calculate the projected retirement date for federal employees.
There are several good sites that display retirement calculators. One of the best ones is http://money.msn.com.
Retirement calculators are a great tool to plan for your retirement. If you go to the MSNBC website they have a free retirement calculator that has all of the necessary tools.
You can go online to find a retirement planning calculator at moneycentral.msn.com/retire/planner.aspx. Another useful website is www.americanfunds.com/retirement/calculator/index.htm
The most accurate retirement calculator available online is the retirement savings calculator at Edward Jones' website. It is easy to use, quick, and versatile.
You can find a free retirement planning calculator at either moneycentral.msn.com/retire/planner.aspx or www.americanfunds.com/retirement/calculator/index.htm. Fool.com and Vanguard offer retirement calculators online. These are free to use.
The best online retirement calculator is probably on this website: http://cgi.money.cnn.com/tools/retirementplanner/retirementplanner.jsp