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Bar / Bat Mitzvah Date Calculator
Find the Hebrew birthday and Bar Mitzvah (age 13) or Bat Mitzvah (12 Orthodox, 13 Reform) ceremony date including the traditional Shabbat ceremony day.
RELIGION · SOCIALFind the Hebrew birthday and the Bar Mitzvah (age 13) or Bat Mitzvah (12 in Orthodox / Conservative, 13 in Reform) ceremony date including the traditional next Shabbat for the public ceremony.
Takes a Gregorian birth date, converts to Hebrew, projects forward 12 or 13 Hebrew years, and applies the Adar I / Adar II halachic rule for children born in leap-year months. Returns the Hebrew ceremony date, Gregorian equivalent, and the Saturday on or after for the standard public ceremony.
Disclaimer: Movements differ on the qualifying age and ceremony customs. Consult your rabbi for final ceremony scheduling — parsha, school calendar, and family availability all play a role.
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Frequently Asked Questions
What is the Bar / Bat Mitzvah Date Calculator for?
Find the Hebrew birthday and the Bar Mitzvah (age 13) or Bat Mitzvah (12 in Orthodox / Conservative, 13 in Reform) ceremony date including the traditional next Shabbat for the public ceremony.
How do I use the Bar / Bat Mitzvah Date Calculator?
Takes a Gregorian birth date, converts to Hebrew, projects forward 12 or 13 Hebrew years, and applies the Adar I / Adar II halachic rule for children born in leap-year months. Returns the Hebrew ceremony date, Gregorian equivalent, and the Saturday on or after for the standard public ceremony.
How accurate are my bar / bat mitzvah date results?
Movements differ on the qualifying age and ceremony customs. Consult your rabbi for final ceremony scheduling — parsha, school calendar, and family availability all play a role.
Is the Bar / Bat Mitzvah Date Calculator free to use?
Yes - every calculator on WhichCalc is completely free with no signup, no usage limits, and no tracking on the calculation itself. Results display instantly in your browser and your inputs are never sent to a server. Bookmark the page if you use this calculator regularly.
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