How much do you need to be able to afford to retire?
Lots of people suggest the nice round number of $1 million. There are so many variables that enter into the estimate of how much you might need, beginning with your projected longevity. Use 3 online longevity calculators to get a ball park estimate. How much will you be eligible from Social Security and are you willing to wait until your true "full retirement age" of 70 before you claim benefits? Will you be eligible to collect a pension? If so, will it be inflation adjusted? What are your retirement plans: world cruises and plenty of travel or puttering in your garden and volunteering locally?
A Motley Fool article by Maurie Backman addresses some of these factors to help you decide. Of course, a consultation with a financial professional who is a fee-only fiduciary (look that up on this blog) can help you decide on a reasonable goal and, more important, how to reach that goal. But check out: http://www.fool.com/investing/2016/07/27/is-1-million-enough-to-retire-on.aspx
For those of you who despair of ever having "enough" read Ralph Warner's book: Get a Life: You don't need a million to retire well.