Age Calculator
Get years, months, and days between a birth date and a reference date—defaults to today.
36 years, 2 months, 22 days
FAQ
Legal drinking or contract age?
Courts care about jurisdiction-specific rules and documents—this tool is a casual calendar arithmetic helper, not legal advice.
Leap day birthdays?
Libraries disagree on “birthday on Feb 29” for non-leap years—our method uses calendar month/day stepping; verify for compliance edge cases.
Time zones at birth?
Exact instants crossing zones need birth certificate timestamps; date-only inputs assume local interpretation.
Gestational vs chronological?
Medical neonatal age differs—do not mix domains.
Historical calendar changes?
Julian/Gregorian shifts affect historical figures—this uses the modern proleptic Gregorian assumption for simple inputs.
Privacy?
Birthdates never leave the browser in this component.
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