Age Calculator
Calculate your exact age in years, months, and days from your date of birth, plus total months lived and days until your next birthday.
Advertisement
Enter your date of birth to calculate your age.
Advertisement
Frequently Asked Questions
How is age calculated?
Age is calculated by counting full calendar years from your date of birth to today. The remaining months and days after whole years are shown separately in the Duration breakdown.
What happens on leap-year birthdays (February 29)?
If you were born on February 29, the next birthday is counted as March 1 in non-leap years for the countdown. The age in years is still calculated correctly based on full calendar years elapsed.
Why might my age differ by 1 day compared to another tool?
Differences can arise from timezone handling or whether the current day is counted as complete. This calculator uses your local date at midnight and treats today as the reference point, which matches the most common convention.