The retirement calculator does these computations by accounting for the retirement savings you already have accumulated:

* savings in a retirement plan such as company retirement plan or IRA
* monthly income you will get from a pension or from social security or retirement deferred comp program
* non-retirement assets that you have: stocks, bonds, mutual funds, notes, etc.
* accumulated equity in your house you might have available if perhaps you plan to sell and rent and free up equity for investing or take a reverse mortgage

The retirement calculator also takes into account the age at which you intend to retire and your forecasted life expectancy. While it may look like the biggest factor is the savings you bring into your retirement that will affect your retirement comfort, it is actually not these financial aspects. The biggest variables of your retirement success are your retirement age and the time you experience in retirement. Therefore, when employing a retirement calculator, we recommend you test the scenario several times using different life expectancies and also see what occurs when you adjust your retirement start from say age 64 to age 66. You may be amazed at the difference you see.

The most superior retirement calculators are usually not those found on-line. The best ones are software that you purchase (not very expensive) as they permit for much more advanced analysis. For example, while the free online retirement calculator will provide you an estimate of the sum you need to put away or the nest egg you need to fulfill your retirement income goals, the purchased retirement calculators often engage Monte Carlo simulations to provide a variety of future possibilities. Unlike the free online retirement calculator that provides ONE average outcome, Monte Carlo calculations illustrate numerouspossible outcomes with their likelihood. You can hence see the chance of a particular retirement plan futures happening.

Be aware that any retirement calculator has failings mainly because it must rely on presumptions such as:

1. Anticipated annual returns for the asset types you choose (e.g. equities, bonds, etc.). Some retirement calculators ask you for these estimates while others have built in assumptions. Either way, if the forecast is that stocks produce a 10% return over the next 30 years and they generate an 8 percent return, your retirement may not go as projected.
2. Anticipated assumptions about asset type unpredictability and correlations with other classes may not go as assumed. For instance, even though equities are assumed to generate 10% yearly returns over your retirement years and they do, if the stocks lose eight percent for each of the starting three years of your retirement, your retirement goals will still not be accomplished because the pattern of returns has an important impact on your retirement calculations.
3. No person knows what income tax rates will be. When you make your assumptions, it is best to bet that rates will be more in the future (how else can the US government close the deficit)?
4. No person knows what the inflation rate we will have. Closely associated to this is the value of the United States dollar and most retirement calculators do not take that into account. If you hope to travel to other countries in retirement and the US dollar is worth twenty percent less, then it means your travel costs abroad will set you back 25% more. The value of the dollar plus the impact of domestic inflation are two other uncertainties that a retirement calculator may not take into account or may need to depend on forecasts that prove wrong.

Before you come to the decision that employing a retirement calculator is a poor use of time, we urge you to reconsider that decision.

By experiencing the practice and thinking about the factors and seeing how the different retirement factors interact, any retirement calculator gives you a much better sense of reality for your retirement goals