Use this calculator to compute how much you would need to have invested in order to withdraw a specified amount each month over the course of a specified period of time. For example, if you want to be able to withdraw $500 during each month of your expected 20–year retirement, this calculator will tell you that if you expect to earn a 10% interest rate you will need to have $51,812.30 saved up by the time you retire. This is often referred to as 'Present Value of an Annuity' analysis.

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This calculator is meant for estimation purposes only.