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Age Calculator

Find an exact age in years, months and days on any date, with the total weeks and days lived and how long until the next birthday.

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How to use the Age Calculator tool

  1. Enter the date of birth.
  2. Change “Age on” if you want the age on a date other than today.
  3. Read the age and the totals below.

How age is counted

Age is counted in completed years, then completed months, then the remaining days. If someone was born on 15 March 2000, they are 26 years old from 15 March 2026 until the day before their next birthday. When the day of the month hasn’t been reached yet, the days are counted from the same date in the previous month.

Useful extras

  • Age on a past or future date: change the “Age on” date to check an age requirement on a specific day.
  • Total days and weeks are handy for milestones such as 10,000 days old.
  • Next birthday shows the date, the weekday and how many days remain.

To count the time between any two dates, use the Date Difference Calculator.

Frequently asked questions

How is the age calculated?

Full years and months are counted first, then the remaining days, the same way ages are counted on official forms.

What about birthdays on 29 February?

In years without a 29 February, the birthday is counted on 28 February.

Are my files uploaded to a server?

No. HushConverts converts everything with code that runs in your browser, so your text and files stay on your device. You can even use most tools offline once the page has loaded.

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