Advanced / traditional
Advanced Gematria Methods
- Live here
- Katan · AtBash · AlBam
- Example
- א AtBash = 400
- Honest list
- Other methods named
- Hebrew suite
- Full calculator
Three methods with live totals
Partner ת valued at 400
Not computed — definitions only
Hechrachi, Gadol, Siduri on other pages
Letter-value calculator
Live · AtBashResult
Type a word — the total updates automatically.
What these three methods do
Mispar Katan (on this site): take each letter’s Mispar Hechrachi value, reduce that value to a single digit, then sum the digits.
AtBash: replace each letter with its AtBash partner (א↔ת, ב↔ש, …), then sum the partners’ Hechrachi values.
AlBam: replace each letter with its AlBam partner (first eleven ↔ last eleven), then sum partners’ Hechrachi values.
For substitution walkthroughs, start with AtBash and AlBam basics.
Worked examples
Practice Katan, AtBash, and AlBam in the Advanced Methods module.
Advanced method examples
א (AtBash → ת)· 400
- AtBash
- א=400 = 400
א (AlBam → ל)· 30
- AlBam
- א=30 = 30
שלום (Mispar Katan)· 16
- Katan
- ש=3 + ל=3 + ו=6 + ם=4 = 16
- Hechrachi
- ש=300 + ל=30 + ו=6 + ם=40 = 376
Methods named but not computed here
Traditional lists include many more systems. We name them so you can recognize sources — we do not invent live totals for them on this site. See the full list of supported methods for what this site does compute.
Mispar Kidmi
Cumulative / triangular-style letter counts in some lists — not implemented.
Mispar Shemi / Milui
Spells letter names and sums those spellings — not implemented.
Mispar Perati
Often squares each letter’s value — not implemented.
Mispar Bone'eh
Building / rolling totals along the word — not implemented.
Mispar HaMerubah
Square of the whole total in some traditions — not implemented.
Avgad / Reverse Avgad
Shift ciphers on the aleph–bet — not implemented.
AchBi / AtBach
Additional letter-pairing systems — not implemented.
Ofanim / Achas Beta
Further classical rearrangements — not implemented.
Common mistakes
Treating AtBash as a second Hechrachi chart
AtBash replaces letters first. The breakdown shows partner values, not the original letter’s standard value.
Reducing the word total for Mispar Katan
On this site Katan reduces each letter’s Hechrachi value to one digit, then sums. Digit-reducing the final Hechrachi total is a different (common) custom — labeled separately as digit reduction on other tools.
Assuming Milui or Kidmi are live
Those names appear in the “not computed” list. Do not invent button totals for them here.
Frequently asked questions
Which advanced methods can I calculate here?
Mispar Katan (per-letter digit reduction of Hechrachi values, then sum), AtBash (substitute then sum Hechrachi of partners), and AlBam (first-eleven ↔ last-eleven substitute, then Hechrachi partners).Do you offer all 25 traditional methods?
No. This page computes three. A catalog below names other traditional methods we do not implement, so you are not shown fake buttons.What does AtBash do to aleph?
Aleph maps to tav. The total uses tav’s Hechrachi value (400), not aleph’s 1.Where are Mispar Gadol and Siduri?
Dedicated pages: Mispar Gadol Calculator and Mispar Siduri Calculator. The Hebrew Gematria Calculator page also exposes them.Can I use these on English letters?
These three tabs count Hebrew letters. For Latin A–Z maps, use the homepage or Reverse / Sumerian pages.