[jsshah]

Rule of 12: Start with $12000 and invest in index fund (S&P500 SPY)

every month invest $1000 into that fund (you can always invest rest of the savings in other investments)

S&P long term annual return is 12% (Assuming it remains that)

After 10 years: ~250K After 20 years: ~1M After 30 years: ~3.25M

So if you are in your 30s, when you retire you should have approx 3M from this investment alone (other mutual funds, stocks, real estate, 401K aside)

Now each year you can withdraw 100K for next 30 years (65 - 95)