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Age Calculator

Enter your date of birth to calculate your exact age in years, months, and days. Quick, simple, and accurate.

How to use this tool

Enter a date of birth in the date field.
Review exact age breakdown in years, months, days, and total time units.
Copy the summary or download a TXT/JSON report for records.

Handy ways to use the calculator

Plan milestone birthdays and anniversaries.
Check age requirements for forms or eligibility.
Use in school projects exploring date arithmetic and leap years.

Accuracy tips

Use ISO date format (YYYY-MM-DD) to avoid month/day swaps.
Copy results directly for contracts or HR systems.
For multiple people, calculate and copy one result before changing input.

FAQ

Does the calculator include leap years?: Yes. Date math is computed from real calendar dates so leap years are naturally accounted for.
Can I use future birth dates?: No. Future dates are rejected because age cannot be negative.
Can I export the result?: Yes. You can download both TXT and JSON reports from the tool.

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