Age Calculator
Use this tool to compute exact age from a birth date: years, months, days lived, total days, and countdown to your next birthday. Handy for planning, school forms, or curiosity. Results are based on calendar math in your browser; they are not legal proof of age for official documents—use certified records where required.
How this age calculator works
Enter your date of birth using the picker. The tool computes the difference between that date and today, breaking the span into whole years, months, and days. It also totals the days elapsed and estimates the next birthday date. Leap years are handled in the underlying date logic so February birthdays behave correctly across years.
When to use it
Planning events, understanding "how old am I exactly," comparing ages for games or teams, or checking how many days remain until a birthday. For medical age thresholds or legal age, always confirm with authoritative records.
Frequently asked questions
Why might my age in years differ from a simple year subtraction?
Age in years often counts only completed birthdays. Months and days capture the remainder since your last birthday.
Is my birth date sent to a server?
No. Calculation runs in your browser on MapleKit. See our Privacy Policy for details.
Can I use this for children?
Yes for age in years/months/days. Pediatric growth charts use different tools; this is general date math only.
Related tools
- Time duration calculator — days between any two dates
- Complete guide to MapleKit — how we approach calculators site-wide