Exact Age · Birthday Countdown · Life Stats
| Age | Milestone |
|---|---|
| 18 | Legal adult (US), voting |
| 21 | Legal drinking age (US) |
| 25 | Car insurance drops, brain fully developed |
| 30 | Metabolism shifts, career established |
| 40 | "Over the hill" — but life expectancy is 78+ |
| 50 | AARP eligibility, catch-up 401k contributions |
| 59.5 | Penalty-free 401k withdrawals |
| 62 | Earliest Social Security |
| 65 | Medicare eligibility |
| 67 | Full Social Security benefits |