Age Calculator
Calculate exact age in years, months, and days. Includes next birthday countdown.
Format depends on your browser locale.
Defaults to today.
Ready. Enter your date of birth.
What this tool does
- Exact age: calendar-accurate years, months, and days.
- Next birthday: date + remaining days.
- Totals: days and weeks lived (months approx shown in summary).
This tool runs locally in your browser and does not upload any data.