Hijri Age Calculator
Calculate your age in both Gregorian and Hijri calendars
Hijri Age Calculator – Date of Birth Calculator in Hijri 📅
Are you looking to calculate your age based on the Islamic (Hijri) calendar? The Hijri Age Calculator is an online tool that lets you enter your birth date either in the Hijri lunar calendar or the Gregorian (AD) calendar, and instantly gives you your age in years, months, days — along with a conversion between Hijri and Gregorian dates.
This tool is ideal for Muslims around the world who wish to track age, birthdays or anniversaries according to the Hijri system.

What is the Hijri Calendar?
The Hijri calendar (also called the Islamic lunar calendar) begins from the migration (Hijrah) of the Prophet Muhammad (peace be upon him) from Mecca to Medina in 622 CE. (Wikipedia)
It consists of 12 lunar months, each about 29 or 30 days, making a year of approximately 354 or 355 days. As a result, a person’s age in Hijri years will appear higher compared with the same age in Gregorian years. (التاريخ الهجري اليوم)
In many Islamic contexts – for religious events, legal documents or personal milestones – calculating age in the Hijri calendar is important.
Why Use a Hijri Age Calculator?
- Accurate age according to Islamic calendar: If your birth date is recorded in Hijri or you follow Hijri milestones, this tool gives you your exact age in that system.
- Dual-calendar support: You can input either a Hijri date or a Gregorian date, and the tool will convert and display both.
- Useful for religious, legal or personal purposes: Whether you need the age for a Muslim marriage, umrah, institution record or simply want to know your age in Hijri years, this calculator helps.
- Easy and fast: No manual tables or complex conversions required — just select your date and click “Calculate Age”.
- Mobile-friendly and ready for WordPress: The provided HTML/CSS/JS code is scoped for use inside a WordPress site without theme conflicts.
How to Use the Hijri Age Calculator
- Open the calculator and choose the tab: Hijri Calendar or Gregorian Calendar.
- If using Hijri: Select Year (AH), Month, and Day of your birth in the Hijri format.
- If using Gregorian: Select Year (CE/AD), Month, and Day of birth.
- Click the “Calculate Age” button.
- The results section will display:
- Your age in years, months, days and total days lived.
- Both your Hijri birth date and Gregorian birth date side by side.
- A confirmation of the calendar conversion.
- Use this result for whatever purpose you require (legal, religious, certificate, etc.).
How Does the Calculator Work?
- Hijri to Gregorian: The tool uses an approximate algorithm: starting from a known reference date (July 16, 622 CE = 1 Muharram 1 AH) then adding up days assuming Hijri year ~354.37 days, and each Hijri month alternating 29/30 days.
- Gregorian to Hijri: It takes today’s Gregorian date or the entered Gregorian date, calculates difference in days from reference, then converts back into Hijri year/month/day using month-length approximations.
- The Age calculation: Once either birth date is converted into a common timeline (Gregorian Date), the age difference between birth date and current date is calculated in years, months and days – similar to modern age calculators.
- Special considerations: Because Hijri years are shorter, someone may be “older” in Hijri years than in Gregorian years. For example, a person may be 45 Gregorian years old, yet 46 or 47 Hijri years old. (احسب)
Pros & Cons of Hijri Age Calculation

✅ Advantages
- Better alignment with Islamic events/anniversaries.
- Useful for institutions in Islamic countries where Hijri dating is required.
- Helps cross-reference age in two calendars simultaneously.
⚠ Limitations
- Because the Hijri year is circa 10-11 days shorter than Gregorian, age in Hijri may appear higher. (AgeCalculator)
- The conversion uses approximations (not tied to every lunar-moon sighting) so for very exact religious purposes (moon-sighting) further verification may be needed.
- For global legal documents which use Gregorian calendar, using only Hijri age may not be accepted.
Comparison Table
| Pros | Cons |
|---|---|
| Provides accurate age according to the Islamic (Hijri) lunar calendar | Age may appear older than in Gregorian because Hijri year is shorter |
| Useful for Islamic religious purposes such as marriage, Umrah, Hajj, and Islamic institutions | Not always accepted in legal or government documents that use Gregorian calendar |
| Helps convert birth dates between Hijri and Gregorian easily | Calculations can vary slightly due to moon-sighting variations |
| Preferred in Islamic countries and culturally significant | Requires conversion tools, not easy to calculate manually |
| Works well for religious events, anniversaries, and Islamic milestones | Conversion accuracy may depend on algorithms rather than actual moon cycle |
| Supports dual-calendar comparison (Hijri + Gregorian) | Can create confusion between two age results if user is not familiar |
Example Scenario
Suppose you were born on 10 Ramadan 1400 AH. Using the Hijri Age Calculator you select the Hijri tab, pick 1400 for year, Ramadan for month (9th month) and day 10. You click calculate and it converts the date into its Gregorian equivalent (say May 3, 1980) and then shows your age today in years/months/days, say 45 years, 6 months, 12 days, and also displays your Hijri birth date.
Alternatively, you might know your birth date in Gregorian (e.g., May 3, 1980). You select the Gregorian tab, pick 1980 year, May month, day 3, click calculate, and it shows your age and the equivalent Hijri date (eg 10 Ramadan 1400 AH).
Best Practices for Using this Tool
- Ensure you select correct calendar tab (Hijri vs Gregorian) based on how your birthdate is recorded.
- Double-check your month name when selecting Hijri months: the Hijri months list is fixed (Muharram, Safar, etc).
- If you are using the age for formal/legal purposes, verify with a recognized Hijri-Gregorian conversion table or authority if moon-sighting matters.
- Use the age result as a guide, but for documentation attach both calendar formats if required.
Why Use Hijri Age Rather Than Gregorian Age?
In many Muslim countries and communities, age calculated by Hijri years is culturally significant — for example when deciding eligibility for Islamic events, confirmations, or milestones. Given that a Hijri year is shorter, the age appears a little higher, which may matter in certain contexts.
Conclusion
The Hijri Age Calculator – Date of Birth Calculator in Hijri is a valuable, user-friendly tool for anyone needing age calculation based on Islamic calendar or seeking the conversion between Hijri and Gregorian dates. With dual-calendar support, instant result display, and modern UI, it fits perfectly in websites covering Islamic content, age-calculation tools, family history, digital forms or religious-milestone tracking.
Make use of this tool to accurately determine your age in both calendar systems, convert birthdates, and ensure cultural or legal requirements are met with ease.
Frequently Asked Questions (FAQs)
What is a Hijri Age Calculator?
A Hijri Age Calculator is an online tool used to calculate a person’s age according to the Islamic lunar calendar. You can enter a date of birth in Hijri or Gregorian format and get your age in years, months, and days along with calendar conversion.
How does Hijri age differ from Gregorian age?
Hijri age is usually slightly higher than Gregorian age because a Hijri year contains 354–355 days, which is around 10–11 days shorter than a Gregorian year. This makes the total year count increase faster.
Why do Muslims use Hijri age?
Muslims prefer Hijri age for religious milestones like Ramadan, Hajj eligibility, Islamic marriage calculation, and personal events based on the lunar calendar.
Is it 1445 or 1446 Hijri?
As of today, the Hijri year is 1447 AH.
Earlier, years 1445 AH and 1446 AH were in use, but those are past years.
How to convert Hijri into AD (Gregorian)?
The conversion typically involves:
1. Starting from a known reference date (for example: Hijri 1 Muharram 1 AH = July 16, 622 CE)
2. Counting days or years between the reference and the given Hijri date
3. Translating that into the Gregorian calendar using approximate formulas (e.g., using average year length ~ 354.37 days) Stack
You can also use this online converters
Why am I older in Hijri?
Because the Hijri year is 10–11 days shorter than the Gregorian year. It has 354–355 days instead of 365, so you complete more years in Hijri, making your age appear higher.
🔗 Reference Site Links
- “Hijri Age Calculator – Calculate Your Islamic Age Accurately” (Do-Calculate) (احسب)
- “Age calculator: Gregorian vs Traditional Calendars” (AgeCalculator.ws) (AgeCalculator)
- “Hijri era” – Wikipedia article on Hijri calendar era (Wikipedia)