Hebrew Birthday Calculator

The Hebrew calendar runs on lunar months kept in step with the solar year by a leap month, so a Hebrew birthday drifts against the Gregorian one from year to year. Enter a birth date and the year you want, and this tool returns the Hebrew date of birth and the Gregorian date the Hebrew birthday falls on, along with the bar and bat mitzvah dates. It converts the other way too, from a Hebrew date back to a Gregorian one. The fixed arithmetic calendar is used throughout, including the rules for a birthday on the thirtieth of a month that some years do not have, and for a birth in Adar when the year has two of them.