Calculate your exact age from your date of birth. Get years, months, days, and total days lived instantly.
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Age Calculator
Free · Instant · No Signup
Age Formula
Formula
Age = Current Date − Date of Birth
Subtract your date of birth from today's date. Account for leap years and varying month lengths for exact days. The calculator handles all edge cases automatically.
Frequently Asked Questions
How is age calculated exactly?+
Age is calculated by subtracting the birth date from the target date, accounting for varying month lengths and leap years to give years, months, and days.
Can I calculate age on a past or future date?+
Yes, change the 'Calculate Age On' field to any past or future date and the calculator will show age on that specific date.
How many days old am I?+
Enter your date of birth and the calculator will show your exact total days lived in the result grid.