Free tool
Shamsi and Hijri to Gregorian Date Converter
Convert a date from the Persian calendar (Shamsi, Solar Hijri) or from the Islamic calendar (Hijri, Qamari) to the Gregorian calendar (Miladi), and back. Free, instant and without registration: useful for birth certificates, diplomas, passports and other official documents from Iran, Afghanistan and the Arab world.
Today is
Islamic (Hijri) dates can differ by one day depending on the country and the moon sighting. For official documents, our sworn translators check every date.
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How it works
How to convert a Shamsi or Hijri date
1
Choose the calendar
Select the calendar of the date you have: Persian (Shamsi), Islamic (Hijri) or Gregorian (Miladi).
2
Enter the date
Type the day and the year, and pick the month from the list, exactly as they appear on your document.
3
Read the result
Click Convert: you get the same day in the other two calendars, with the day of the week.
The calendars
Persian and Islamic calendar: the differences
Both calendars count the years from the Hijra, the migration of the Prophet Muhammad from Mecca to Medina in 622 AD. The Persian calendar follows the sun and the Islamic calendar follows the moon, so the same year has a different number in each of them: in 2026, for example, the Persian year is 1404-1405 and the Islamic year is 1447-1448.
Persian calendar (Shamsi, Solar Hijri)
The official calendar of Iran, also used in Afghanistan. It is a solar calendar: the year starts with Nowruz, on the spring equinox (20 or 21 March), and has 365 days (366 in leap years), so every month always falls in the same season. The first six months have 31 days, the next five 30 days, and Esfand 29 or 30.
Quick rule: from Nowruz to the end of December, Gregorian year = Persian year + 621; from 1 January (about 11 Dey) to the end of Esfand, + 622.
| Month | Persian | Starts about |
|---|---|---|
| 1. Farvardin (Hamal) | فروردین | 21 March |
| 2. Ordibehesht (Sawr) | اردیبهشت | 21 April |
| 3. Khordad (Jawza) | خرداد | 22 May |
| 4. Tir (Saratan) | تیر | 22 June |
| 5. Mordad (Asad) | مرداد | 23 July |
| 6. Shahrivar (Sonbola) | شهریور | 23 August |
| 7. Mehr (Mizan) | مهر | 23 September |
| 8. Aban (Aqrab) | آبان | 23 October |
| 9. Azar (Qaws) | آذر | 22 November |
| 10. Dey (Jadi) | دی | 22 December |
| 11. Bahman (Dalw) | بهمن | 21 January |
| 12. Esfand (Hut) | اسفند | 20 February |
In brackets: the month names used in Afghanistan (Dari and Pashto). Start dates can move by one day depending on the year.
Islamic calendar (Hijri, Qamari)
A lunar calendar of 12 months of 29 or 30 days. The year has only 354 or 355 days, so Hijri dates move about 11 days earlier every Gregorian year, and Ramadan falls in a different season over the years. It is used for religious dates in all Muslim countries and in Saudi Arabia (Umm al-Qura calendar, the one used by this converter).
Good to know: in many countries a new month starts when the new moon is sighted, so the same Hijri date can differ by one day from one country to another.
| Month | Arabic |
|---|---|
| 1. Muharram | محرم |
| 2. Safar | صفر |
| 3. Rabi al-Awwal | ربيع الأول |
| 4. Rabi al-Thani | ربيع الآخر |
| 5. Jumada al-Ula | جمادى الأولى |
| 6. Jumada al-Akhirah | جمادى الآخرة |
| 7. Rajab | رجب |
| 8. Shaban | شعبان |
| 9. Ramadan | رمضان |
| 10. Shawwal | شوال |
| 11. Dhu al-Qadah | ذو القعدة |
| 12. Dhu al-Hijjah | ذو الحجة |
Rough rule: Hijri year = (Gregorian year - 622) x 33 / 32. Use the converter above for the exact day.
FAQ
Frequently asked questions
How do I convert a Shamsi date to a Gregorian (Miladi) date?
Choose "Persian calendar" in the converter, enter the day, month and year and click Convert. To check the year quickly: from Nowruz (about 21 March) to 31 December add 621 to the Persian year, from 1 January to the end of Esfand add 622. Example: 1 Farvardin 1405 is 21 March 2026, and 11 Dey 1405 is 1 January 2027.
What is the difference between the Shamsi and the Hijri calendar?
Both start from the Hijra of 622 AD, but the Shamsi (Solar Hijri) calendar follows the sun and has 365 days, while the Hijri (lunar, Qamari) calendar follows the moon and has 354 or 355 days. That is why the Persian year is now around 1405 and the Islamic year around 1448, and why Islamic dates move through the seasons.
Why can a Hijri date differ by one day?
This converter uses the Umm al-Qura calendar, which is calculated in advance. In many countries, however, a new Islamic month begins only when the new moon is actually sighted, so local calendars and religious authorities can be one day earlier or later. For official documents, always check the date written on the original.
Which calendar is used on Iranian and Afghan documents?
Most Iranian civil documents, such as the birth certificate (shenasnameh), diplomas, transcripts and marriage certificates, are dated in the Persian (Shamsi) calendar; some also show the Gregorian date. Afghan documents also use the Solar Hijri calendar, often with the Dari month names (Hamal, Sawr, Jawza...), and sometimes Hijri lunar dates. Documents from Arab countries may use Hijri or Gregorian dates, or both.
Can I use the converted date in an official translation?
The converter is a quick reference. In a certified or sworn translation the translator normally keeps the original date and adds the Gregorian equivalent, for example "15 Mehr 1370 (7 October 1991)". Our translators check every date against the original document, so names, dates and numbers match exactly.
Is the date converter free?
Yes. It is free, needs no registration and works directly in your browser: the dates you enter are not sent to us or stored.