How long will my savings last?

What this is

At a fixed annual withdrawal and expected return, how many years until depletion?

Deterministic projection. Money grows at the assumed rate; you draw the same nominal amount each year. If withdrawal rate ≤ return rate, the portfolio is sustainable indefinitely (in nominal terms).

• ·Use nominal returns + nominal withdrawal (not adjusted for inflation), OR real returns + real withdrawal. Be consistent.
• ·Conservative real return assumption: 3-4%. Aggressive: 5-6%.