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free
Date & Time Tools

Age Calculator

Calculate exact age in years, months, and days.

Runs in your browser by default — private, fast, and ready to export.

age-calculator

Enterprise-ready Cyber Tools product. Processing stays in your browser unless a feature explicitly calls a documented API. Verify critical outputs before production use.

How to use, examples & FAQShow

How to use

  1. Select date of birth
  2. Select as-of date
  3. Review age breakdown

Example

Born 2000-01-01 as of today

Benefits

  • Exact Y/M/D breakdown
  • Total days

FAQ

Are leap years handled?

Yes, via standard date arithmetic.

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