Converting currency dates from Hijri to Gregorian

Historical converter: Accurately convert currency dates from Hijri to Gregorian.

The method of recording dates on coins varies according to eras and countries, and there are two basic systems that every collector should know:

  1. Direct history system: This is common in modern currencies (such as Saudi, Egyptian, and other Arab currencies), where the full Hijri date is written (for example, 1354 AH), and here we use the calculation:

    Gregorian calendar = (Hijri calendar x 0.970229) + 621.5643

  2. Ottoman currency system (year of accession): Ottoman coins were distinguished by having two dates; Date of the Sultan's accession (It is written below) andYear of rule (It is written at the top).

To determine the actual date of minting, you must add (year of accession + year of rule - 1).

Illustrative example: If you find a coin of Sultan Abdul Hamid II with the year of his accession 1293 and the year of his reign 5, then the year of minting is 1293 + 5 – 1 = 1297Hijri year, which corresponds to 1880 AD.

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Deciphering Ottoman, Saudi, and ancient Islamic coins

Corresponding Gregorian date
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Expert advice: Modern Saudi and Egyptian currencies use the direct Hijri date, while Ottoman currency requires combining the year of rule with the year of accession.

Why do the results sometimes differ? The Islamic year is approximately 11 days shorter than the Gregorian year, therefore the equation Converting currency dates from Hijri to Gregorian It relies on precise calculations to ensure that there is no error in estimating the age of the artifact.

 You can review Calculator for the prices of ancient coins and precious metals To find out the price of the precious metal for the most famous Arab coins

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