Hijri to Bengali Date Converter

Convert between the Islamic Hijri calendar and the Bangla (Bengali) calendar. Chains both calendars through their shared Gregorian midpoint for accurate results.

Hijri day Hijri month Hijri year (AH)

Bengali (Bangla) date ৩ শ্রাবণ ১৪৩৩

Via Gregorian: 19 July 2026

Romanised: 3 Shrabon, 1433 BS

About this converter

This tool bridges the Islamic Hijri calendar and the Bangla (Bengali) calendar — two completely different reckonings that share a surprising historical connection. It chains two conversions: Hijri → Gregorian (via the Aladhan calendar API) and Gregorian → Bangla (via fixed-start-date arithmetic).

Why these two calendars are historically linked

When Mughal Emperor Akbar reformed the Bengali calendar in the late 16th century, he started the Bangla Sambat (BS) era from the existing Hijri year of his reign — Hijri 963 AH. He then converted the lunar reckoning to a solar one to align fiscal harvest seasons. This is why the Bangla year and Hijri year are still close in number today: in 2026, the Bangla year is 1432 / 1433 BS while the Hijri year is 1447 / 1448 AH — only about 14 years apart.

How the conversion works

For Hijri → Bangla, the tool first queries Aladhan to find the Gregorian date for the chosen Hijri date, then maps that Gregorian date onto the Bangla calendar using the Bangladesh civil reckoning. For the reverse (Bangla → Hijri), the chain runs the other direction. Both the intermediate Gregorian date and the final result are shown for transparency.

Worked example

Take 1 Ramadan 1447 AH. The Aladhan calendar gives 20 March 2026, which falls in Bangla month Choitro of BS 1432. The Bangla date is therefore ৬ চৈত্র ১৪৩২ (6 Choitro 1432 BS).

Frequently asked questions (FAQ)

Hijri to Bengali date FAQs

How does the Hijri to Bengali date converter work?

The tool chains two conversions: it first converts the Hijri (Islamic) date to the Gregorian (English) date using the Aladhan calendar API, then converts that Gregorian date to the Bangla (Bengali) calendar date. Both intermediate and final results are shown.

Can I convert a Bengali date back to a Hijri date?

Yes — open the reverse direction of this tool or use the Bangla → Hijri direction toggle.

Are Bangla and Hijri calendars related?

They share a historical connection: when Emperor Akbar reformed the Bengali calendar in the 16th century, he used the existing Hijri year (963 AH) as the starting point and converted it from lunar to solar reckoning. This is why the Bangla year and Hijri year are close in number even today — for example, 1433 BS overlaps with 1447–1448 AH in 2026.

Why does the Bangla year differ slightly between sources?

Because the Bangla calendar uses fixed Gregorian start dates (in the civil/Bangladesh form) while the Hijri calendar uses observed moon sightings, the day-to-day mapping varies slightly. This converter uses the Bangladesh civil reckoning and the Aladhan Umm al-Qura-based Hijri.

How accurate is the conversion?

The Gregorian intermediate is exact. The Hijri component depends on the Aladhan API's calendar source — accurate within ±1 day for any specific local moonsighting tradition.