Age Calculator with Exact Days

About the Age Calculator with Exact Days

Age Calculator with Exact Days returns your precise age in years / months / days and also reports the total days, weeks, hours, minutes and seconds you have lived — plus a friendly countdown to your next birthday.

How to use

1. Pick your date of birth.
2. Optionally pick a target date (defaults to today).
3. Click Calculate to see a full breakdown.

Benefits & key features

• Calendar-accurate (handles leap years and month-borrow correctly).
• Milestone planner: find the exact date you turn 10,000 days old.
• Next-birthday countdown keeps the anticipation alive.
• Works for pets, historical figures and yourself.

Pro tip

For the classic '10,000-days' party, enter your DOB and set the 'as of' date to your DOB + 10000 days (Excel or a quick Date Difference Calculator run gets that date).

Why choose toolsfy for Date & Time tools?

Time calculations quietly eat hours of a working week — booking cross-time-zone meetings, figuring out how many business days a document review takes, converting between epoch timestamps and human dates. toolsfy's date-and-time tools replace the dozen tabs, Excel formulas and clunky phone apps you currently juggle with one consistent, keyboard-friendly workspace that works identically on desktop and mobile.

Common use cases

• Project managers estimating a realistic ship date by adding business days (skipping weekends) to today rather than calendar days.
• Remote-team leads converting a Tuesday 3 pm standup into every teammate's local time before sending the invite — and catching daylight-saving gotchas automatically.
• Developers decoding Unix epoch timestamps printed in raw log files into readable dates without leaving the browser.

Frequently asked questions