Age Calculator
Calculate your exact age online in years, months, and days, with next birthday details.
About This Tool
This free online age calculator helps you quickly find exact age from a birth date. It returns years, months, and days, and also gives total days lived so you can use it for forms, records, planning, and profile details. You can switch to advanced mode to calculate age against a custom as-of date, which is useful for eligibility checks, historical calculations, and audit reporting.
Everything runs inside your browser for speed and privacy. Your input dates are not stored on IO Tools servers. Use this online tool any time you need a clear and accurate age result with birthday timing details.