Age Calculator

The age calculator finds the exact difference between two dates in years, months, and days. It accounts for varying month lengths and leap years to give you a precise result. Simply enter your birth date and the calculator does the rest.

To calculate your age in days, find the number of days between your birth date and today. This requires accounting for leap years (366 days) and regular years (365 days). Our calculator handles this automatically and shows your age in total days, hours, and minutes.

A leap year occurs every 4 years (with exceptions for years divisible by 100 unless also divisible by 400). Our calculator properly accounts for leap years, including February 29th birthdays, to give you an accurate age calculation.

Yes! While the calculator defaults to today's date, you can change the end date to any date you want. This lets you calculate the duration between any two dates — for planning events, tracking milestones, or finding out how long until a future date.

Our age calculator shows you the day of the week for your birth date. Fun fact: the day you were born has a name in many cultures — like 'Wednesday's child is full of woe' from the old nursery rhyme. Enter your birth date to find out!