Age Calculator
Calculate your precise age in years, months, and days. Find out how many days until your next birthday.
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26 Years
7 Months
5 Days
Chronological age counts the years, months, and days from your birth date to a reference date. Unlike subtracting birth year from the current year, proper age math respects month lengths and leap years.
What is chronological age?
Chronological age is calendar time elapsed since birth. Governments, schools, and employers use it for eligibility—voting at 18, senior discounts at 65, school entry at age 6.
Our calculator breaks age into years, months, and days simultaneously so you never round incorrectly on official paperwork.
Live age in hours and seconds
When the reference date is today, the tool updates hours, minutes, and seconds lived—useful for fun milestones and understanding that age is continuous, not just yearly jumps.
Total days and weeks help compare life milestones (10,000 days lived ≈ 27.4 years).
Next birthday planning
The next birthday card shows the upcoming calendar date and countdown in months and days. For dedicated countdown views, use our Birthday Countdown Calculator.
February 29 births may celebrate on February 28 or March 1 in common years depending on local custom—enter the date you officially use.
Last updated: August 6, 2026
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