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Age calculator

Find calendar age on a chosen date. Simple, private, right in your browser.

Pick up where you left offMy workspace →

Save the inputs and settings you choose. Nothing is uploaded until you select Save.

Save a file to your 5 MB cloud space

Choose a file explicitly. Your tool’s open files are never uploaded automatically. PDF, PNG, JPEG, WebP, TXT, CSV and JSON are supported.

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A LITTLE GUIDANCE

How to use this tool

  1. Enter a birth date and the date on which to calculate age.
  2. Use today’s date if appropriate.
  3. Calculate calendar age, total days and the next birthday.

A worked example

Birth date 2000-01-15 on 2026-01-15 → 26 years exactly.

What to know

This is a calendar calculation, not a legal-age determination. February 29 birthdays are observed on February 28 in non-leap years for the next-birthday calculation.

Supported inputs and limits

Dates from 1900 through 2100; birth date cannot be in the future relative to the age-on date.

Where is my data processed?

In your browser. Cloud saving is optional: only the supported inputs, settings or files you explicitly choose are uploaded. Download or save anything you want to keep before closing the page. Read our privacy details.

Further reading

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