You have probably read that the sooner you begin saving, the better, because the magic of compounding can make you wealthy. But what if you don’t start early and still want to accumulate a nest egg that will carry you through your retirement years? The article below shows the amount you must save and the amount you must earn annually to reach $1,000,000. The assumption is that you contribute to a 401(k), and eventually max out your annual contributions.
http://awealthofcommonsense.com/2018/07/how-hard-is-it-to-become-a-401k-millionaire/