Age Calculator

Enter your birthdate and instantly see your exact age in years, months, and days — plus a countdown to your next birthday.

Date of Birth

Defaults to today. Change to calculate age at any date.

Enter a birthdate and click Calculate Age

Summary

Enter your birthdate and instantly see your exact age in years, months, and days — plus a countdown to your next birthday.

How it works

  1. Enter your date of birth using the date picker.
  2. Optionally change the "As of" date to calculate age at a specific point in time.
  3. Click "Calculate Age" — your exact age in years, months, and days appears instantly.
  4. View your age broken down into total months, total weeks, and total days.
  5. Check the next-birthday countdown to see how many days remain.

Use cases

  • Quickly find out how old you are in years, months, and days.
  • Calculate a child's age for medical or school enrollment forms.
  • Verify whether someone meets an age requirement (e.g., 18+ or 65+).
  • Find how old a historical figure was on a specific date.
  • Determine your age in weeks or days for fun or fitness tracking.
  • Plan birthday parties by seeing exactly how many days remain.
  • Calculate age for legal documents, insurance, or retirement planning.
  • Check age eligibility for competitions or age-group sports.

Frequently Asked Questions

Last updated: 2026-06-09 · Reviewed by Nham Vu