Article — Gematria Calculator
Gematria calculator: Hebrew and English letter-to-number systems
Gematria is the practice of assigning numerical values to letters and summing them for a word or phrase. The Hebrew tradition uses two main systems — Mispar Hechrechi (place-value, aleph = 1 to tav = 400) and Mispar Siduri (ordinal, aleph = 1 to tav = 22). English gematria uses A = 1 to Z = 26 (Ordinal) or the cyclical 1–9 Pythagorean reduction. This calculator computes all four, with letter-by-letter breakdowns.
The system predates dedicated numerical symbols. In ancient Hebrew, Greek, and several other alphabets, letters were the numerals. Writing a number meant writing letters. From this practical origin grew the religious and mystical practice of comparing words by their sum — the assumption being that two words sharing a value share some deeper connection.
What is gematria?
Gematria assigns each letter of an alphabet a numerical value, then sums those values for a target word, name, or phrase. The total — called the gematria value — is treated as carrying information beyond the letters themselves.
The technique appears in Jewish mysticism (especially Kabbalah), in early Christian numerology (the “number of the beast” in Revelation), in Greek isopsephy, and in modern numerological systems. The same general method, different alphabets and conventions.
Hebrew gematria standard (Mispar Hechrechi)
Mispar Hechrechi (literally “necessary number”) is the classical Hebrew system. Each of the 22 letters has a fixed value: units 1–9 for the first nine letters (aleph through tet), tens 10–90 for the next nine (yod through tsadi), hundreds 100–400 for the last four (qof, resh, shin, tav).
א=1, ב=2, ג=3 ד=4, ה=5, ו=6ז=7, ח=8, ט=9 י=10, כ=20, ל=30מ=40, נ=50, ס=60 ע=70, פ=80, צ=90ק=100, ר=200, ש=300 ת=400Final letter forms (ך, ם, ן, ף, ץ) traditionally share the value of their normal forms. An optional extended system called Mispar Gadol assigns them 500, 600, 700, 800, 900 instead — useful when the analyst wants higher totals to compare against.
Hebrew letters were the numerals of biblical times. To write the year 5784 (a Hebrew calendar year), Hebrew uses ה (5) + ת (400) + ש (300) + פ (80) + ד (4), written ה'תשפ"ד. Modern Israeli signage often uses this letter-numeral system on calendars, dedication plaques, and gravestones.
Hebrew gematria ordinal (Mispar Siduri)
Mispar Siduri (“sequential number”) assigns letters their position in the alphabet: aleph = 1, bet = 2, gimel = 3, …, tav = 22. Totals are much smaller than the place-value system.
Siduri is often used in Hasidic and Kabbalistic analyses where the place-value totals would be too large to compare meaningfully. The word “Shalom” (שלום) sums to 376 in Hechrechi but only 52 in Siduri (Shin = 21, Lamed = 12, Vav = 6, Mem = 13).
English gematria systems
English gematria is a modern construction, mostly from the Renaissance and later. Three common systems:
- English Ordinal: A=1, B=2, …, Z=26 (also called Simple gematria)
- English Reduced (Pythagorean): A=1, B=2, …, I=9, then J=1, K=2, …, R=9, S=1, T=2, …, Z=8 (cycle of 9)
- English Gematria (sometimes called Jewish): each letter multiplied by 6 (rare)
- Sumerian: each letter multiplied by 6 from Ordinal (decorative)
The Pythagorean system is the most popular in modern numerology because it always reduces to a single digit. The Ordinal system is closest in spirit to Hebrew gematria but lacks the historical and religious weight of its Hebrew counterpart.
Gematria in Kabbalah and Bible study
In Kabbalah, gematria is one of several interpretive techniques (alongside notarikon and temurah) for finding hidden meanings in Torah. Two words sharing a gematria value are taken to share an underlying conceptual connection. The classic example: ahavah (אהבה, love) and echad (אחד, one) both equal 13, suggesting that love and unity are fundamentally the same idea.
Bible commentators have used gematria for almost two millennia. Rabbi Eliezer ben Yose ha-Galili (2nd century CE) listed gematria as the 29th of 32 hermeneutical rules for interpreting Torah. Medieval Kabbalists (especially the German Hasidim and Spanish school of Abraham Abulafia) made it central to mystical practice.
The reduced value (Mispar Katan) is the digital root: keep summing digits until a single digit remains. 376 → 3+7+6 = 16 → 1+6 = 7. Equivalent to the formula ((value − 1) mod 9) + 1. Used to compare words at the deepest reduction level, where most multi-digit totals collapse to a small set of options.
Famous gematria values
חי (Chai, life) = 18אהבה (Ahavah, love) = 13אחד (Echad, one) = 13יהוה (YHWH) = 26אלהים (Elohim, God) = 86שלום (Shalom, peace) = 376תורה (Torah) = 611משיח (Mashiach, Messiah) = 358The value 18 (chai = life) is the basis for many Jewish charitable customs: donations are given in multiples of 18 ($18, $36, $54, etc.). The fact that love and unity share the same value of 13 is a touchstone of Kabbalistic theology.
Two unrelated words can share a gematria value by sheer chance. With only ~5000 possible totals in Mispar Hechrechi and millions of Hebrew words, collisions are statistically expected. Traditional commentators use gematria as a suggestion for further interpretation, not as proof. Skeptics treat it as numerical pareidolia. Use the technique thoughtfully.
Gematria history
The earliest known gematria-like use comes from an Assyrian inscription of Sargon II (8th century BCE), who claimed to have built the walls of Khorsabad to a length matching the numerical value of his name. The technique appears in Jewish texts from the 2nd century CE onwards — Baraita of the Thirty-Two Rules listed it as rule 29 for interpreting Torah.
Kabbalists from the 13th to 16th centuries (Abraham Abulafia, Moses Cordovero, Isaac Luria) made gematria a centrepiece of mystical practice. Christian Hebraists in the Renaissance brought the technique into European intellectual life, and the modern English numerological systems are direct descendants of that Renaissance-era adaptation.
Today gematria appears in Orthodox Jewish study, in academic Kabbalah research, in popular numerology, and in many modern esoteric traditions. The Hebrew calculator on this page implements the standard Mispar Hechrechi and Mispar Siduri systems used by traditional commentators; the English calculators implement the standard Ordinal and Pythagorean systems used by modern numerologists.
If you compare results across systems, expect very different totals. The Hebrew word shalom (שלום) sums to 376 in Hechrechi but only 52 in Siduri. In English Ordinal, the word “peace” sums to 30; in Pythagorean it sums to 21 (reducing to 3). None of these is “more correct” than another — each is a different lens on the same letters. Pick the system that matches the tradition you are studying.