Calculators & Converters★ Free forever✓ No account🔒 No upload📴 Works offlineUpdated April 28, 2026

Free Age Calculator Online — No Signup Required

Age Calculator helps you Calculate exact age from a birth date with years, months, and days — find how many days until your birthday — free, in 2026, without leaving the browser. It is built for operators, students, analysts, and decision makers, so you can run quick calculations without installing spreadsheet templates or apps with a fast public URL, clear output, and a workflow that stays focused on the task instead of setup.

Browse all toolsBrowse more calculators & converters toolsBuilt by Achraf A., Full-Stack Developer · Morocco

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What is Age Calculator?

An age calculator computes the precise time elapsed between a birthdate and today (or any target date) in years, months, and days. While subtracting birth years gives an approximate age, an exact calculation must account for leap years, month lengths, and whether the current month has passed the birth month's day. This matters for legal eligibility checks (voting age, retirement, insurance), medical age requirements, milestone tracking, and anniversary calculations.

This calculator handles all edge cases: birthdays on February 29th (leap day births), age calculations spanning multiple centuries, and calculations between any two dates. Enter a birthdate to see age as of today, or enter both a start date and end date to calculate the duration between any two historical or future dates. The result shows years, months, and days, plus the next birthday countdown.

How to use Age Calculator in 3 steps
  1. 1

    Enter the birthdate

    Select or type the date of birth (day, month, year).

  2. 2

    Set the target date

    Leave as today's date for current age, or set a different date to calculate age at a specific point in time.

  3. 3

    Read the result

    See exact age in years, months, and days, plus next birthday information.

Key features and benefits
  • Exact age in years, months, and days
  • Handles leap years and February 29 birthdays
  • Calculate age between any two dates
  • Next birthday countdown
You might also need

Continue this workflow with nearby browser-based tools so you can validate, convert, and ship output without context switching.

References and standards

Age Calculator FAQs

Quick answers about the workflow, privacy, and where this tool fits in a broader job.

How is age calculated on a leap day birthday?

For people born on February 29th, age is counted on March 1st in non-leap years (some jurisdictions use February 28th). This calculator follows the common convention of March 1st for non-leap years.

Can I calculate age in months only, or days only?

Yes — the calculator shows total elapsed months and total elapsed days alongside the standard years/months/days breakdown, useful for infant age tracking (often expressed in months under age 2) or contract duration calculations.

How do I calculate someone's age on a future date?

Set the target date to the future date instead of today. This is useful for checking whether someone will meet a minimum age requirement by a specific deadline.

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Built and maintained by

Achraf A.

Founder & developer — built and maintains every tool on this site

Last updated:

Tested in Chrome, Firefox, and Safari on desktop and mobile.

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