Ah, it does not assume that you'll die: The retirement calculator takes the Total retirement savings and calculates how much monthly income a 4% annuity would

Ah, it does not assume that you'll die: The retirement calculator takes the Total retirement savings and calculates how much monthly income a 4% annuity would generate without drawing from the principal. This indicates the type of lifestyle you can expect without running out of money. Or, to put it another way: it assumes that you want to be worth roughly the same at death as you were at retirement. That's fine, but it bears mentioning - since it assumes you want to pass on potentially millions of dollars at the time of your death. If you aim to break even at death, that changes the calculations.