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Age Calculator

Calculate your exact age in years, months, days and hours. Find out days until your next birthday.

ℹ️ How to use
  1. Enter date of birth using the date picker
  2. Set reference date — defaults to today
  3. Click Calculate — get exact age in all units

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❓ Frequently Asked Questions

How do I calculate my exact age in years, months and days?

Subtract your birth date from today's date. First subtract years, then adjust for months, then days. This tool does the calculation automatically and shows your age in years, months, days, weeks, hours and minutes.

How many days old am I?

Enter your date of birth in the calculator and click Calculate. The total days lived field shows the exact number of days you have been alive since birth.

How do I calculate age from date of birth in Excel?

In Excel use =DATEDIF(A1,TODAY(),"Y") for years, =DATEDIF(A1,TODAY(),"YM") for remaining months, and =DATEDIF(A1,TODAY(),"MD") for remaining days. Or just use this free age calculator for instant results.

How many days until my next birthday?

The calculator automatically shows how many days remain until your next birthday, including the exact date it falls on.

Can I calculate age between two specific dates?

Yes — change the 'Calculate Age On' field to any date instead of today. This is useful for calculating age at a specific event, historical age calculations, or future age projections.

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