Toolwise

Age Calculator

Find your exact age, or the time between any two dates, down to the year, month and day.

How to use Age Calculator

  1. 1Enter the date of birth.
  2. 2Optionally change the 'as of' date if you want your age on a specific date rather than today.
  3. 3View your exact age in years, months and days.

About Age Calculator

This calculator finds the exact time elapsed between a date of birth (or any start date) and today (or any end date), broken down into years, months and days — plus your age in total days.

Benefits

  • Get an exact age breakdown for forms, eligibility checks or curiosity.
  • Calculate age as of any future or past date, not just today.

Common mistakes

  • Forgetting leap years when calculating age manually — this calculator accounts for them automatically.

Frequently Asked Questions

Yes, set the 'as of' date to any future date to see what your age will be on that day — useful for eligibility cut-offs.

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