About the Age Calculator tool
Age Calculator tells you exactly how old you are in years, months, and days from your date of birth. It also shows fun totals like your age in weeks, days, and hours. Enter a second date to find your age on any past or future day — perfect for birthdays, eligibility checks, or curiosity. The Age Calculator runs instantly in your browser.
How to use the Age Calculator
- Pick your date of birth.
- Leave the second date as today, or choose another date.
- Click Calculate Age.
- See your exact age and total days, weeks, and hours.
Features
- Exact age in years, months, and days.
- Age as of any date you choose.
- Bonus totals: weeks, days, and hours.
- Instant, private, browser-based.
- Free with no sign-up.
Your privacy
The Age Calculator runs entirely inside your web browser. Your files and text are never uploaded to any server, so your data stays private on your own device — just like the workflow trusted on sites such as iLovePDF and Sejda, but with nothing leaving your computer.
Frequently asked questions
How does the Age Calculator handle leap years?
It counts real calendar days, so leap years are included automatically.
Can I calculate age for a future date?
Yes, set the second date to any future day to see the age then.
Is my data stored?
No, all calculations happen locally and nothing is saved.