🎂 Age Calculator

Our free Age Calculator calculates exact age in years, months, days, hours, and minutes. Enter your date of birth, and we'll tell you your precise chronological age plus days until your next birthday. Perfect for birthday countdowns, legal age verification, and milestone tracking.

Example: Born March 15, 1990. As of today: 34 years, 2 months, 14 days. Total: 408 months, 12,418 days, 298,032 hours, 17,881,920 minutes. Next birthday in 290 days (March 15). All calculations account for leap years and varying month lengths.

Our calculator handles leap years (2000 was leap, 1900 wasn't, 2100 won't be), different month lengths (February = 28 or 29, April = 30, May = 31), and gives day-exact results. Works for any date from 1900 to 2100.

Common uses: (1) Birthday countdown — days until celebration. (2) Legal age — verify 18/21 for contracts and alcohol. (3) Retirement — years until 67. (4) Milestones — 10,000 days alive, 1,000,000 hours. (5) Medical — age-based dosing and screening schedules.

Related: Calculate your BMI with our BMI Calculator for age-adjusted health metrics. Use the Calorie Calculator for age-based metabolism. The Compound Interest tool shows retirement projections. The Stopwatch tracks time-based events.

Age is more than a number. Track your chronological age, plan for milestones, and use our related health calculators for age-specific wellness insights. Free, accurate, and no signup required.