Age Calculator
Exact age in years, months, and days
Enter your date of birth to see your precise age broken down into years, months, and days. Optionally set a target date to check your age on a specific future or past event.
How to use it
Enter date of birth
Select your birth date to instantly see your current exact age.
Set a target date (optional)
Change the target date to preview your age on any specific day — useful for forms, applications, and milestone planning.
Check your next birthday
See how many days until your next birthday at a glance.
Results are calendar-based and use UTC for consistency. For official legal or administrative purposes, always use your original documents.
Frequently asked questions
Can I calculate age on a future date?
Yes. Set any target date — past or future — to see exact age on that specific day. Useful for forms, milestones, and eligibility checks.
Why can age differ by timezone?
Date boundaries shift by timezone, especially around midnight. This calculator uses UTC to keep results consistent regardless of your location.
Is this valid for legal verification?
Use official records for legal verification. This calculator is best for quick planning, forms prep, and age-related eligibility checks.
How do I find out how old I am in days?
Enter your date of birth and the calculator shows your exact age broken down into years, months, and days. Multiply completed years by 365 (plus leap days) and add the remaining months and days for a total day count.
What day of the week was I born?
Enter your birth date and the calculator will display the corresponding day of the week along with your full age breakdown.
How is age calculated exactly?
Age is calculated by counting full completed years, then full months, then remaining days from your birth date to the target date. This follows the standard calendar method used worldwide.
Does a leap year birthday affect my age?
No. If you were born on February 29, your age still advances by one year every 365 or 366 days. In non-leap years, your birthday is typically recognized on February 28 or March 1 depending on jurisdiction.
How do I calculate my age for a visa or passport application?
Enter your birth date and set the target date to your planned application or travel date. The result gives you the exact age that will appear on your documents at that time.
Can I calculate someone else's age?
Yes. Enter any person's date of birth to calculate their exact age. This works for children, family members, or anyone whose birth date you know.
How many days until my next birthday?
The calculator includes a next-birthday countdown that shows how many days remain until your upcoming birthday based on today's date.
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This calculator is for informational purposes only and does not constitute legal, financial, or tax advice. Results are based on publicly available data and rules current at the time of the last update. For specific decisions, consult the relevant authority or a licensed professional. ProperCalc accepts no liability for any inaccuracies or consequences arising from the use of these results.