Put it this way, $2.5K a year for 45 years at 8% interest would leave you with $1 million in the bank.>>>>>>>>>>>>>
And what will that buy after 45 years of inflation which the government tries to hide by juggling the figures? I am only 61 years old and I remember when a person who had one tenth of that in the bank at any age would have thought that work was purely voluntary for them. A projected lifetime of earnings back then amounts to one good year now.
A million to a million five in today's money is a hell of a lot for one person to survive on for 15 years.
That amount can be figured, with a few assumptions:
Average inflation: 3.5% (that's been the rate from 1915-present)
Amount Needed to Retire Comfortably in 2006 Dollars: $50,000 (just for starters...substitute your own number if you like)
Inflation Multiplier: 4.8 (I believe multiplying today's amount times this number will get you a comparable amount 45 years from now, but it's been awhile, someone may want to check that calculation).
If we use $50K as the base amount, you'd need around $240K annually to retire at the same level of spending in 45 years. So if your investment is yielding a 6% return, you'd actually need $4 million in the bank to live on interest alone.
Given all this, a 25 year old planning to retire in 45 years with a goal of $4 million in the bank will need to contribute $10,349 annually and achieve an 8% return.
(Obviously, drawing on the principle as well as the interest/yield would require less savings.)