Orthodox vs. Conservative vs. Reform — What's the Difference?

If you have Jewish friends, colleagues, or neighbors, you have probably noticed that "Jewish" covers a wide range. One Jewish coworker eats anything. Another brings sealed kosher meals to every lunch. One goes to synagogue on Saturdays. Another has never been. They are all Jewish — but they practice very differently.

This is because Judaism has denominations, similar to how Christianity has Catholics, Protestants, and Evangelicals. The three major ones are Orthodox, Conservative, and Reform. Here is what you actually need to know about each.

What They All Share

Before the differences: the common ground is deeper than most outsiders realize.

• One G-d. All three branches are monotheistic and worship the same G-d.
• The Torah. All three revere the Five Books of Moses as foundational.
• Jewish identity. A Jew is a Jew regardless of denomination. Someone born to a Jewish mother (or converted) is Jewish whether they are Orthodox, Reform, or non-practicing.
• Israel. All three maintain a connection to the land of Israel, though political views vary widely.
• Ethics. Justice, charity, kindness, and community responsibility are central values across all branches.

Orthodox Judaism

Core belief: Jewish law (halacha) was given by G-d at Sinai and is binding. It is not optional, not subject to popular vote, and not open to revision based on contemporary preferences.

What this looks like in daily life:

• Strict Shabbat observance (no driving, electronics, commerce, or work from Friday sunset to Saturday night)
• Kosher kitchen and diet (separate dishes for meat and dairy, only certified kosher food)
• Daily prayer (three times a day for men)
• Modest dress (women cover elbows, knees, collarbone; married women cover hair)
• Gender-separated prayer in synagogue (mechitza)
• Children attend Jewish schools (yeshiva for boys, Bais Yaakov for girls)

Sub-groups within Orthodoxy:

• Modern Orthodox — fully observant but engaged with secular education, careers, and broader culture
• Yeshivish (Litvish) — more insular, emphasis on Talmud study, less secular engagement
• Hasidic — follows a Rebbe, distinct dress, Yiddish-speaking, many sub-groups (Chabad, Satmar, Breslov, Ger, etc.)
• Sephardic Orthodox — Middle Eastern/North African heritage, same halachic commitment with different customs

Conservative Judaism

Core belief: Jewish law is binding but can evolve through rabbinic interpretation. The tradition is authoritative but responsive to changing conditions.

What this looks like in daily life:

• Shabbat observance varies (many drive to synagogue, some avoid work but use electronics)
• Many keep kosher at home but may eat non-kosher in restaurants
• Men and women sit together in synagogue
• Women can be ordained as rabbis and count toward a minyan (prayer quorum)
• Children may attend Jewish day schools or supplementary programs

Key distinction from Orthodox: Conservative Judaism accepts that halacha changes over time through a formal legal process (the Committee on Jewish Law and Standards). Orthodox Judaism rejects this — halacha is fixed by established precedent and cannot be overridden by committee.

Reform Judaism

Core belief: Jewish identity is rooted in ethical principles and personal meaning, not in binding ritual law. Each individual chooses how to express their Judaism.

What this looks like in daily life:

• Shabbat observance is personal — some light candles, some attend services, many do not observe specific restrictions
• Kosher observance is optional and individual
• Full gender equality (women rabbis, mixed seating, egalitarian liturgy)
• Services include significant English alongside Hebrew
• Patrilineal descent is recognized (if either parent is Jewish and the child is raised Jewish, the child is considered Jewish — this is not accepted by Orthodox or Conservative Judaism)

Key distinction from Orthodox: Reform Judaism does not consider halacha binding. Orthodox Judaism considers this a fundamental departure from the religion.

Why It Matters to You

If you are a non-Jew interacting with Jewish people — at work, in your neighborhood, socially — knowing the denomination tells you what to expect:

| If your Jewish contact is... | They probably... | |------------------------------|-----------------| | Orthodox | Keep strictly kosher, observe Shabbat fully, may not shake hands with opposite gender | | Conservative | Keep some kosher, attend synagogue regularly, are flexible on specific practices | | Reform | Have few dietary or Shabbat restrictions, prioritize ethical and communal aspects |

Do not assume. Ask if you are unsure. "Do you keep kosher?" is not rude — it is thoughtful, especially if you are planning a meal or event.

The Conversion Question

This is where denominational differences create real consequences:

• An Orthodox conversion is recognized by all three movements
• A Conservative conversion is recognized by Conservative and Reform, but generally not by Orthodox
• A Reform conversion is recognized by Reform only

This means a person who converted through a Reform rabbi is fully Jewish in their own community but may not be considered Jewish by an Orthodox rabbi. This creates painful situations — especially around marriage, burial, and immigration to Israel (where the Orthodox rabbinate controls personal status law).

One More Thing

Most Jewish people do not think about denominational boundaries as much as this article suggests. In real life, Jews of different backgrounds are friends, family, neighbors, and coworkers. The labels describe institutional affiliation and practice level — they do not determine personal relationships.

If you are not sure what kind of Jewish your friend or colleague is, the simplest approach: treat them as an individual and ask specific questions ("Can you eat this?" "Does this date work for you?") rather than trying to categorize them into a denomination. They will appreciate the respect more than the knowledge.