Calculators · 100% Free
Age Calculator
How old are you — exactly? Enter your date of birth and this free age calculator tells you your age down to the day, plus your total days on Earth.
How to Use the Age Calculator
1
Pick your date of birth in the date field.
2
Click Calculate age.
3
See your age in years, months and days — plus total days lived.
Why Use Our Age Calculator?
- Exact results. Proper calendar math, including leap years.
- Total days. See your full day count alongside years and months.
- Instant. No forms, no waiting — one click.
- Private. Your birth date never leaves your browser.
Age Calculator FAQs
The calculator compares your birth date with today, borrowing days and months correctly across month lengths and leap years.
Yes. February 29 birthdays and leap days are handled with real calendar arithmetic.
Of course — enter any past date of birth to find that person's exact age.
Total days is handy for milestones, pet ages, anniversaries and fun facts.
No. The calculation happens locally; nothing is uploaded or saved.
The tool is designed for past dates. Future dates show a friendly error instead.
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