Age Calculator
Calculate your exact age in years, months, days, hours, minutes, and seconds. Discover total days lived, days until your next birthday, and astrological zodiac sign.
? How to use Age Calculator
- 1 Select your Date of Birth in the date picker.
- 2 Optionally customize the "Age as of" date (defaults to today).
- 3 Instantly review your exact age breakdown and milestone statistics.
- 4 See how many days remain until your next birthday!
Key Features & Privacy Guarantee
- Exact age breakdown: Years, Months, and Days
- Milestone statistics: Total days, hours, minutes, and seconds lived
- Countdown to next birthday with day of week
- Western and Chinese zodiac sign calculation
- 🔒 Complete Privacy: All computations, conversions, and renders occur locally in your browser. No files or personal data are ever uploaded to any server.
About Age Calculator
Age Calculator works out your exact age from your date of birth: years, months and days, plus the total number of days, hours and minutes you have been alive. You can also change the "age as of" date to see how old someone was or will be on a specific day.
It shows how many days remain until your next birthday and which day of the week it falls on, along with your Western and Chinese zodiac signs. The calculation runs in your browser and your date of birth is not stored.
Common ways to use it
- Check exact age for a form, school admission or eligibility rule.
- Find out how many days are left until a birthday.
- Calculate the age difference as of a particular past or future date.
Age Calculator FAQ
Can I calculate age on a past or future date?
Yes. Change the "age as of" date to any day and the breakdown updates.
How is the age in months and days worked out?
The tool counts full years first, then remaining full months, then remaining days, using the real calendar.
Is my date of birth saved?
No. The calculation is done in your browser and nothing is stored or sent.