Age Calculator
Find out exactly how old you or someone else is. Instantly calculate chronological age in exact years, and see the total number of months and days you've been alive.
How It Works
Age is calculated by counting the full calendar years between the date of birth and the target date, then counting remaining months and days. The calculation is calendar-aware, correctly handling February birthdays in leap years and varying month lengths.
When to Use This
Use this to find your exact age for official forms, to calculate how old you will be on a future date, or to determine someone else's age for milestone planning.
How to Use the Calculator
- 1
Enter Date of Birth
Input the starting day (usually your birthdate).
- 2
Set the Target Date
This defaults to today, but can be set to any past or future date.
- 3
Instantly see the results
Your age in total years, months, and exact days alive is calculated instantly.
Frequently Asked Questions
How exactly is my age calculated?
Can I calculate age on a future date?
Does this factor in leap years?
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