Does anyone have any experience with getting estimated social security retirement benefits from www.ssa.gov? If so, do you know of a way to determine them as of a date different than the last day you work? For example, if someone was 55, wanted to stop working (and thus have no wages) at age 58 and wanted to know what his benefit would be at 62, is there a way to calculate that other than writing to the Social Security Administration?

I think that the calculator at this page might do what you want. Choose the one labeled "Online".

Let us know if it works for you.