Age Difference Calculator Between Two People

Enter the birth dates of any two people and get the age difference in years, months, and days. Also suitable for calculating the duration between any two dates — a contract, a project, or an event — in Hijri and Gregorian.

Age Difference Calculator

Calculate the age difference or duration between two dates in years, months, and days, with full support for Hijri and Gregorian calendars.

First Person's Birth Date
Second Person's Birth Date

Difference Between Two Dates

Difference Between Two Dates

Difference Between Two Dates:
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Detailed Statistics

Total Months
Total Weeks
Total Days
Total Hours
Total Minutes
Total Seconds

Precision Notice

Results are based on calendar calculations. Some dates may differ by one day depending on the adopted calendar or official sighting in each country.

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How to Calculate the Difference Between Two Dates?

Enter the birth dates of any two people — or any two dates you choose — and get the difference in years, months, and days, plus the total in weeks and overall days. The tool supports both Hijri and Gregorian calendars, with calculations based on the Umm al-Qura calendar.

Practical Use Cases

  • Calculating the age gap between spouses or between parents and children
  • Determining the exact duration of a rental or employment contract
  • Finding the number of days between two historical or academic dates
  • Computing years of service for retirement or promotion purposes

If you want to calculate your own age individually rather than the difference between two people, use the age calculator. And if you need to convert one of the dates between Hijri and Gregorian before entering it, the date converter can help.

A Note on Calculations

The tool accounts for the varying month lengths between the two calendars (29–30 days in Hijri, 28–31 days in Gregorian) to ensure accurate results in both directions.

Frequently Asked Questions

How do I quickly calculate the age difference between two people?

Enter the first person's birth date in the first field and the second person's in the second field, then press "Calculate Difference." The result appears instantly.

Can I calculate the difference using the Hijri calendar?

Yes. Select the Hijri calendar from the tool options and enter both dates in Hijri to get the result.

What is the difference between "age difference" and "duration between two dates"?

They are the same calculation. Age difference uses birth dates, while duration between two dates can apply to any two dates (contract, project, event).

Does the tool calculate the difference in weeks too?

Yes. The result displays the difference in years, months, and days, plus the total in weeks and overall days.