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PricingAboutSupportBar/Bat Mitzvah Date Calculator
Enter a birth date and this finds the Hebrew birthday, the bar or bat mitzvah Hebrew date, and the Shabbat on or after it, with that week's parsha and a note if the date lands on a holiday.
Enter a birth date to see the bar or bat mitzvah date.
How the Date Is Chosen
A bar or bat mitzvah date is not chosen; it arrives automatically on a child's 13th (boy) or 12th (girl) Hebrew birthday, the anniversary of birth by the Hebrew rather than the Gregorian calendar. From that day, Jewish tradition holds the young person accountable for the commandments, whether or not any ceremony takes place.
Because the Hebrew calendar's leap months shift the Gregorian date from year to year, this date rarely lands on the same Gregorian date as a Gregorian 13th birthday. This calculator converts the birth date to its Hebrew anniversary, then finds the Hebrew year in which the child turns the relevant age.
The celebration itself, including calling the child to the Torah for an aliyah, most often happens on the Shabbat on or immediately after the Hebrew birthday, so the calculator shows that Shabbat and its parsha as well.
Related
Frequently Asked Questions
How is a bar or bat mitzvah date chosen?
A boy becomes bar mitzvah on his 13th Hebrew birthday, a girl becomes bat mitzvah on her 12th; the obligation to keep the commandments begins that day regardless of any ceremony. Many families hold the celebration, including calling the child to the Torah, on the Shabbat on or after that date, which is why this calculator shows both.
Why 12 for girls and 13 for boys?
Halachic majority (bar/bat mitzvah, literally "son/daughter of the commandment") is traditionally reached at 13 for boys and 12 for girls. Some communities mark a girl's bat mitzvah at 13 instead; customs vary.
What if the date falls on a holiday?
The religious milestone still happens on the Hebrew birthday itself. For the celebration and the Torah reading, many families use the nearest convenient Shabbat instead, which this calculator also shows.