Gematria Ciphers

A cipher is the letter-value table a gematria calculation runs on. Each system below has its own page with the full letter grid, history, and worked examples - and every cipher can be toggled live in the calculator.

Chaldean

The Chaldean cipher is one of the oldest numerology systems, rooted in ancient Babylonian tradition.

Septenary

The Septenary cipher maps the alphabet onto a rising-and-falling cycle of 1 through 7, peaking at G and T.

Ordinal

English Ordinal is the simplest and most widely used gematria cipher: each letter takes its position in the alphabet, A=1 through Z=26..

Reduction

Full Reduction (also called Pythagorean numerology) reduces each letter’s alphabet position to a single digit 1-9, so A=1 through I=9, then J=1 begins the cycle again..

Sumerian

The Sumerian cipher is English Ordinal multiplied by six: A=6, B=12, through Z=156, echoing the base-60 mathematics of ancient Sumer..

Latin

The Latin cipher (sometimes called Jewish gematria) follows the classical arrangement of ones, tens, and hundreds across the Latin alphabet, with the late additions J, V, and W taking the high values 600, 700, and 900..

Reverse Ordinal

Reverse Ordinal mirrors the alphabet: Z=1 through A=26.

Reverse Reduction

Reverse Reduction reduces the reversed alphabet to single digits 1-9 - the mirror of Full Reduction, completing the four base ciphers of modern gematria..

Fibonacci

The Fibonacci cipher walks the Fibonacci sequence out to the middle of the alphabet and back: 1, 1, 2, 3, 5, 8 … 233, then mirrors down again to 1..

Primes

The Primes cipher assigns each letter the nth prime number: A=2, B=3, C=5, through Z=101..

Pi

The Pi cipher is a custom π-inspired cipher unique to Occult Decode..

Three Six Nine

The Three Six Nine cipher cycles the alphabet through 3, 6, and 9 - the numbers Nikola Tesla reputedly called the key to the universe..

Trigonal

The Trigonal cipher maps each letter to its triangular number: A=1, B=3, C=6, through Z=351 (the 26th triangular number)..

Squares

The Squares cipher maps each letter to the square of its alphabet position: A=1, B=4, C=9, through Z=676..

Standard

English Standard follows the ones-tens-hundreds structure of Hebrew and Greek gematria applied to English: A=1 through J=10, then K=20 through S=100, then T=200 through Z=800..

English Kabbalah

The English Kabbalah cipher (the ALW cipher of the New Aeon English Qaballa) is a permuted arrangement of the alphabet derived from a magic-square reading of Liber AL vel Legis, used in Thelemic gematria..

Trigrammaton Kabbalah

The Trigrammaton Qabalah assigns values 0-25 to the English letters via their correspondence to the 27 trigrams of Liber Trigrammaton, one of the primary systems of English qabalistic analysis..

Hebrew Standard

Mispar Hechrachi is the standard Hebrew gematria - the original system the word "gematria" comes from.

Hebrew Gadol

Mispar Gadol ("the great value") extends the standard cipher by letting the five final letters continue the sequence: final kaf 500, final mem 600, final nun 700, final pe 800, and final tsadi 900 - completing the full 1-900 scale..

Hebrew Katan

Mispar Katan ("the small value") reduces every letter to a single digit 1-9, discarding the zeros - the Hebrew analogue of Full Reduction.

Greek Isopsephy

Isopsephy is the Greek counterpart of gematria, in continuous use since the classical era.

Keypad

The Keypad cipher assigns each letter the digit it shares on a telephone keypad: ABC=2, DEF=3, through WXYZ=9..

Satanic

The Satanic cipher is English Ordinal shifted by 35: A=36 through Z=61.