Enter your birth date to calculate your exact age.

When to Use This Age Calculator

Use the Age Calculator for official forms, milestone planning, birthday timing, and quick life-date checks:

Legal Documents & Verification
Calculate exact age for passport applications, visa requirements, insurance forms, and legal documents that require precise age information.
Birthday Countdown
See how many days remain until the next birthday so you can plan parties, gifts, or milestone reminders on time.
Health & Medical Records
Get precise age details, including total days lived and age at a diagnosis or appointment date, for health records and dosing checks.
Life Milestone Planning
Check how old someone will be on a future event date such as retirement, an anniversary, or another major milestone.
Fun Facts & Curiosity
Discover your zodiac sign, birth weekday, and total time lived for trivia, celebrations, and shareable personal stats.

Frequently Asked Questions

How accurate is the age calculation?: The calculator uses real calendar dates, so month lengths and leap years are included when it breaks your age into years, months, and days.
How are leap-year birthdays handled?: If you were born on February 29, your exact age is still calculated from that date. In non-leap years, the next birthday countdown follows the next valid calendar date.
What date format should I use?: Use the date picker when possible. If you type the date manually, enter it in the format shown by your browser, usually YYYY-MM-DD.
Can I calculate age on a future or past date?: Yes. Enable the calculate-at-date option, choose the target date, and the result will show the age on that day. The target date cannot be before the birth date.
How is the zodiac sign determined?: The zodiac sign is based on the Western zodiac date ranges for the birth month and day. It is provided as a fun informational detail.