Age Calculator — Free Online Tool
Find your exact age in years, months and days — plus total days lived, hours, weeks and your next-birthday countdown.
Your age breakdown will appear here after you click Calculate Age.
You are exactly
0 years, 0 months, 0 days
0
Total months
0
Total weeks
0
Total days lived
0
Total hours lived
—
Day of week born
0
Days until birthday
—
Instant results — no waiting
No sign-up needed
Free forever
How it works
1Pick your date of birth in the box above.
2Press Calculate Age — your exact age and totals appear instantly.
3Check your stats — days lived, birth weekday and your next-birthday countdown.
Frequently asked questions
How is my exact age calculated?
With proper calendar math: full years are counted first, then full months, then the remaining days — accounting for different month lengths and leap years, so the result matches your real age.
Is my date of birth uploaded or stored anywhere?
No. The whole calculation runs locally in your browser. Your date of birth never leaves this page and nothing is saved.
What about people born on 29 February?
In leap years the birthday is on 29 February; in non-leap years the next birthday is counted on 28 February and the exact age still comes out right.
Exact calendar math · Leap years handled · 100% local — your date never leaves this page.