Why knowing your exact age matters

For casual conversation, "I'm in my thirties" is plenty. For paperwork, healthcare, and contracts, vague age can cost you eligibility.

Legal age thresholds

Voting, drinking, contracts, pensions — all defined to the day. The live calculator tells you exactly which side of a threshold you're on.

Pediatric dosing is in months. Adult screening recommendations kick in at specific ages. Vaccination schedules use precise weeks from birth.

Retirement accounts have age-based rules; insurance premiums use age last (or next) birthday. Knowing both is useful.

10,000 days alive, one billion seconds, the day you become older than a parent ever was. The milestones tool surfaces them all.

Watching the seconds tick is the calendar finally showing its work.