Age Calculator
Pick a date of birth to see the exact age today, down to the day.
Exact age-
Total days-
Total weeks-
Next birthday-
How the calculation works
Exact age is computed calendar-aware: years first, then whole months, then remaining days — the same way ages are counted legally. Total days and weeks are the raw elapsed time between the two dates, and the next-birthday countdown accounts for leap years automatically.
Frequently asked questions
How are leap-year birthdays handled?
Someone born on 29 February has their next birthday counted on 29 February in leap years and 1 March otherwise — the most common legal convention.