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Age Calculator
Enter a date of birth to see the exact age today — or on any date you choose — plus totals and the days until the next birthday.
Age Calculator
Your age
Total months—
Total weeks—
Total days—
Next birthday in—
How it’s calculated
Age is counted in calendar terms: full years, then remaining full months, then days — handling month lengths and leap years exactly. Totals (weeks, days) count every day lived.
Common uses
- Eligibility checks (exams, jobs, pensions)
- Baby age in months and weeks
- Anniversaries and milestones
Frequently asked questions
Does it handle leap years?
Yes — 29 February birthdays and leap years are handled correctly.
Can I calculate age on a past or future date?
Yes, change the “Age on” date.