Age Calculator — Tips & Guide

Calculate your exact age down to the day, hour, and minute. Useful for medical records, legal documents, milestone celebrations, and curiosity.

Age in Days for Development

Counting age in days is useful for tracking infant development, gestational age, or medication schedules. Pediatricians often use exact day counts in the first months of life.

Use the Specific-Date Option

Want to know how old someone was at a historical event? Enable the "Calculate age on a specific date" option and enter the event date. Great for genealogy and historical research.

Subtract the birth date from the current date. Count the completed years, then the remaining months, then the remaining days. This calculator does all that automatically and also shows the result in total days, weeks, and hours.
Multiply your age in years by 365, then add extra days for leap years and the days since your last birthday. This calculator computes the exact count including all leap years since your birth.
Your zodiac sign is determined by your birth month and day. Aries (Mar 21 – Apr 19), Taurus (Apr 20 – May 20), Gemini (May 21 – Jun 20), Cancer (Jun 21 – Jul 22), Leo (Jul 23 – Aug 22), Virgo (Aug 23 – Sep 22), Libra (Sep 23 – Oct 22), Scorpio (Oct 23 – Nov 21), Sagittarius (Nov 22 – Dec 21), Capricorn (Dec 22 – Jan 19), Aquarius (Jan 20 – Feb 18), Pisces (Feb 19 – Mar 20).
A regular year has 52 weeks and 1 day (365 days). A leap year has 52 weeks and 2 days (366 days). On average, a year is 52.18 weeks. This calculator shows your total weeks lived, accounting for all leap years since your birth.