Age Calculator — Exact Age by Date of Birth

Find your exact age in years, months and days on any date, plus total days and your next birthday. Free, no sign-up, and your files never leave your device.

Free, with no sign-up and no watermark. The file is processed in your browser and never uploaded.

Find your exact age in years, months and days on any date, plus your age in total months, weeks, days and hours, the weekday you were born and how long until your next birthday. Set the “age on” date to check eligibility on an exam cut-off date.

Step by step

  1. Enter your date of birth: Use the Date of birth picker.
  2. Choose the reference date: Age on defaults to today; change it to a cut-off date if needed.
  3. Read your age: Years, months and days appear in the result, with the weekday you were born.
  4. See the totals: Total months, weeks, days, hours and your next birthday are listed below.

Handy for

Exam and job eligibility

Check your age on the date an application specifies.

Birthdays

See how many days are left until your next birthday.

Children’s ages

Track a baby’s age in months and days.

Paperwork

Fill in forms that ask for age in completed years.

Good to know

  • People born on 29 February have their birthday counted on 28 February in common years.

  • Total hours are approximate because they don’t include your time of birth.

Questions

How are months and days counted?

Like a calendar: whole years first, then whole months, then the remaining days. A month from the 31st ends on the last day of a shorter month, so 31 January to 1 March is 1 month and 1 day, and someone born on 29 February turns a year older on 28 February in common years.

Is anything sent to a server?

No. Every calculation runs in your browser, so the numbers you type never leave your device. The page keeps working offline once it has loaded.

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