Islamic Age Calculator
Your Age in Hijri (هجري) Years
Find your age in the Islamic Hijri lunar calendar instantly. Converts your Gregorian date of birth to a Hijri date and shows your age in Islamic years, months and days — plus current Hijri year.
How to Use the Islamic Age Calculator
Find your Hijri age, Islamic date of birth and current Hijri year in three simple steps — completely free, no sign-up needed.
What Is the Islamic Hijri Calendar?
The Hijri calendar (التقويم الهجري) — also called the Islamic calendar or AH (Anno Hegirae) — is the official calendar of Islam. It is a purely lunar calendar consisting of 12 months, each beginning with the sighting of the new crescent moon. A Hijri year contains either 354 or 355 days — approximately 11 days shorter than the Gregorian solar year.
The calendar began with Muharram 1, 1 AH — corresponding to July 16, 622 CE — the date of the Hijra, the migration of Prophet Muhammad (صلى الله عليه وسلم) from Mecca to Medina. This momentous event marks the foundation of the Islamic community and calendar, which is why the era is called Anno Hegirae ("Year of the Hijra" in Latin).
"The Hijri calendar governs the Islamic religious calendar — Ramadan, Eid al-Fitr, Eid al-Adha, Hajj and the sacred months are all determined by the Hijri calendar. Knowing your Hijri age is knowing your age in the timekeeping system of Islam."
Why Is Your Hijri Age Higher Than Your Gregorian Age?
Because the Islamic lunar year (354.37 days) is shorter than the Gregorian solar year (365.25 days), the Hijri calendar gains approximately 11 days per year relative to the Gregorian calendar. This means your age in Hijri years is always slightly higher than your Gregorian age. For every 33 Gregorian years you live, you complete approximately 34 Hijri years. A person who is 33 Gregorian years old is approximately 34 Hijri years old.
The 12 Months of the Hijri Calendar
Each of the 12 Islamic months carries deep religious and historical significance. Several months hold special status in Islam — four are designated as sacred months (Ashur al-Hurum).
| # | Month Name | Arabic | Days | Significance |
|---|---|---|---|---|
| 1 | Muharram | مُحَرَّم | 29–30 | Sacred month — Islamic New Year. Ashura on 10th Muharram |
| 2 | Safar | صَفَر | 29–30 | Month of travel — no special religious status |
| 3 | Rabi al-Awwal | رَبِيع الأوَّل | 29–30 | Birth of Prophet Muhammad (PBUH) — Mawlid an-Nabi |
| 4 | Rabi al-Thani | رَبِيع الثَّانِي | 29–30 | Second spring month |
| 5 | Jumada al-Awwal | جُمَادَىٰ الأُولَىٰ | 29–30 | First dry month |
| 6 | Jumada al-Thani | جُمَادَىٰ الثَّانِيَة | 29–30 | Second dry month |
| 7 | Rajab | رَجَب | 29–30 | Sacred month — Isra and Mi'raj celebrated |
| 8 | Sha'ban | شَعْبَان | 29–30 | Month before Ramadan — Night of Bara'at on 15th |
| 9 | Ramadan | رَمَضَان | 29–30 | Month of fasting — Laylat al-Qadr in last 10 nights |
| 10 | Shawwal | شَوَّال | 29–30 | Eid al-Fitr on 1st — six fasts of Shawwal |
| 11 | Dhu al-Qa'dah | ذُو الْقَعْدَة | 29–30 | Sacred month — preparation for Hajj |
| 12 | Dhu al-Hijjah | ذُو الْحِجَّة | 29–30 | Sacred month — Hajj season, Eid al-Adha on 10th |
Hijri Calendar vs Other Calendar Systems
The Hijri calendar stands out as the only major official calendar in active global use that is purely lunar — with no solar adjustment.
| Calendar | Type | Year Length | New Year | Official Use |
|---|---|---|---|---|
| 🌙 Hijri (Islamic) | Purely Lunar | 354–355 days | Muharram 1 (moves ~11 days/yr) | Religious use worldwide, official in Saudi Arabia |
| 🌍 Gregorian | Solar | 365.25 days | January 1 | International standard — official in most countries |
| 🇨🇳 Chinese Lunar | Lunisolar | 354 or 384 days | Chinese New Year (Jan/Feb) | Cultural use in China and East Asia |
| 🇳🇵 Bikram Sambat | Solar-lunisolar | ~365 days | Baisakh 1 (mid-April) | Official in Nepal |
Hijri Age in Islamic Religious Life
Ramadan — Fasting by the Lunar Calendar
Ramadan is the 9th month of the Hijri calendar and the holiest month in Islam. Because the Hijri calendar is purely lunar, Ramadan moves approximately 11 days earlier each Gregorian year — cycling through all four seasons over a 33-year period. A person who is, say, 33 Hijri years old has experienced Ramadan in every season at least once.
Zakat and the Hawl — The Lunar Year Threshold
One of the most practically important uses of the Hijri calendar is in calculating Zakat — the obligatory annual charity that is one of the Five Pillars of Islam. Zakat becomes due when two conditions are met: the wealth exceeds the Nisab threshold, and it has been held for one complete Hawl — one full Islamic lunar year (354 days).
This means that Zakat due dates are calculated in Hijri months, not Gregorian months. A Muslim who received an inheritance on Muharram 1 calculates their Zakat anniversary on the following Muharram 1 — not 365 Gregorian days later. If you need to calculate your Zakat accurately — including on gold, cash, savings, salary, crypto and business assets — IslamCalculator.com provides free scholar-verified Zakat calculators covering all asset types and major Madhabs.
Hajj and the Sacred Months
The Hajj pilgrimage takes place in the month of Dhu al-Hijjah — the 12th and final month of the Hijri year. Like Ramadan, Hajj moves through the Gregorian seasons over time because the Hijri calendar is not fixed to the solar cycle. The four sacred months (Ashur al-Hurum) — Muharram, Rajab, Dhu al-Qa'dah and Dhu al-Hijjah — are months in which warfare and certain actions are traditionally prohibited, adding to the spiritual significance of the Hijri calendar for Muslims worldwide.
Other Asian Age System Calculators
Every calendar tradition has its own age system. Explore them all below.
Related Guides
Go deeper into age calculation and the Islamic calendar system.