Hijri to Gregorian Date Converter

Example: reading the result

1 Ramadan 1448 AH is Monday, 8 February 2027 on the Umm al-Qura calendar, and Ramadan 1448 has 29 days in the table.

That is the calculated date. The start of Ramadan is announced officially after the crescent is sought on the evening of 29 Sha'ban, so the first day may move by one. Other dates, such as a document's expiry or a contract date, follow the table as it is.

A quick estimate without a converter

To find the Gregorian year roughly, multiply the Hijri year by 0.97 and add 621.6. For example 1448 × 0.970 + 621.6 ≈ 2026.5, so 1448 AH runs from mid-2026 into 2027. The estimate is good for the year only; use the converter for the exact day.

Why you can’t just add 622 years

A Hijri year is about 11 days shorter than a Gregorian year, so the gap between the two calendars changes every year. That is also why Ramadan moves about 11 days earlier each year and comes back to the same season after roughly 33 years.

Method and source

Dates are converted with the Umm al-Qura table built into the ICU calendar library that browsers use, and tested automatically against the official table published by the Umm al-Qura calendar for every month of 1440–1450 AH: the day each month starts and its length. How we calculate dates.