CALCULATOR
Age Calculator
Enter a date of birth to calculate age in years, months and days.
How this tool works
An age calculator compares a date of birth with the current date to estimate elapsed years, months and days. It can be useful for forms, planning milestones or checking an age calculation without counting dates manually.
How to use it
- Choose the date of birth in the date field.
- Select Calculate age.
- Read the years, months and days shown in the result.
Example and practical tips
Age is not always just the current year minus the birth year: whether the birthday has occurred this year changes the full-year count, and remaining months and days must also be considered.
The calculation uses the current date available to the browser. Check the selected birth date carefully, and do not use this general calculator as official proof of age where identity documents or jurisdiction-specific rules are required.
Frequently asked questions
What date does it calculate to?
It uses the current date available on the device/browser.
Can it replace official age verification?
No. It calculates from the date entered and does not verify identity or official records.