About Age Calculator

Enter your birth date and instantly see your exact age broken down into years, months, and days — plus the total in weeks and days. Also shows your next birthday countdown, zodiac sign, and a fun fact about how many days you've been alive. Handy for form-filling, age verification, birthday planning, or satisfying your curiosity about time.

How to Use Age Calculator

1. 1Select your birth date using the date picker
2. 2Your age in years, months, and days is calculated instantly
3. 3See additional breakdowns: total months, total weeks, total days lived
4. 4Check your next birthday countdown and zodiac sign below

When to Use Age Calculator

• ▸Filling out forms that ask for age in years, months, and days
• ▸Planning birthday parties with an exact countdown
• ▸Meeting age requirements for websites, services, or events
• ▸Fun social sharing about how many days you've been alive

Frequently Asked Questions

How does it handle February 29 birthdays?

The calculator correctly handles leap day birthdays, showing February 28 as the celebration date in non-leap years.

Is my birth date stored or shared?

No — everything is calculated in your browser. Your birth date is never stored, transmitted, or saved.