Bar mitzvah date and parasha calculator

Enter a birth date to see the Hebrew and Gregorian bar or bat mitzvah date, the weekly parasha, and the Torah-reading days at the Kotel around that date.

Bar or bat mitzvah

Dates are for reference only. In some cases the bar mitzvah celebration may be held earlier — in any case, consult a Rabbi.

Leave your name and phone number, and we’ll get back to you with the exact dates and options.

How the date is calculated

The calculation runs on this page, with no call to an outside service, using the Hebrew calendar: 13 Hebrew years are added for a bar mitzvah, or 12 for a bat mitzvah, from the birth date (or from the next Hebrew day if “born after sunset” is checked). Adar rules in a leap celebration year are applied. The weekly parasha follows the Israel Torah-reading schedule, on the Shabbat of that date or the next Shabbat. Torah-reading days at the Kotel are Mondays, Thursdays and Rosh Chodesh. The dates are for reference only and do not replace consulting a Rabbi.

Frequently asked questions

How is the bar mitzvah date calculated?

From the Hebrew birth date. A bar mitzvah adds 13 Hebrew years; a bat mitzvah adds 12. If the birth was after sunset, the Hebrew date is the next day. In a leap celebration year, a child born in Adar or Adar II celebrates in Adar II; a child born in Adar I stays in Adar I. In a non-leap year, Adar I and Adar II become Adar.

What changes if the child was born after sunset?

The Hebrew day begins in the evening. If the birth was after sunset, the Hebrew date — and therefore the bar or bat mitzvah date — moves by one day. Tick the box in the tool if you know the birth was after sunset.

Which parasha is read, and what are the reading days at the Kotel?

The parasha is that of the Shabbat on the date itself, or the next Shabbat, according to the Israel reading schedule. At the Kotel, the Torah is read on Mondays, Thursdays and Rosh Chodesh. The tool shows the next dates on or after the bar/bat mitzvah day, and can also show reading days in the week before, with the weekday and parasha.

Can the celebration be held earlier?

In some cases, yes. That is why the tool includes “Show earlier dates”. It lists Mondays, Thursdays and Rosh Chodesh in the week before the date, with the weekday and parasha. In any case, consult a Rabbi — the tool does not decide.

Does this calculation replace consulting a Rabbi?

No. The dates are for reference only. Rabbi Pinchas Margulis, who leads JBM, has been accompanying families at the Western Wall for over 18 years and over 3,768 events. After you see the dates, you can leave your name and phone number to consult a Kotel bar mitzvah expert Rabbi.

Does the tool also work for a bat mitzvah?

Yes. Choose “Bat mitzvah (12)”. The calculation uses 12 Hebrew years, with the same sunset, Adar, parasha and Kotel reading-day rules.

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