Hebrew Gematria Explained: Methods, History & Examples

Hebrew gematria assigns each of the 22 letters of the Hebrew alphabet a fixed numeric value — ones for the first nine letters, tens for the next nine, and hundreds for the last four — and sums those values to calculate the numeric total of any word or phrase. It is the original and most developed gematria tradition, with several distinct, well-documented calculation methods still in use today.

The alphabet's built-in number structure

Aleph (א) through Tet (ט) count 1 through 9. Yod (י) through Tsadi (צ) count 10 through 90 in steps of ten. Qof (ק) through Tav (ת) count 100 through 400 in steps of one hundred. This isn't a system designed for gematria — it's simply how Hebrew numerals have always worked, going back to antiquity. Gematria is what happens when you take that built-in structure and start comparing word totals.

The main calculation methods

Our Hebrew calculator computes six of these live:

• Mispar Hechrachi (Standard Value) — the default system described above.
• Mispar Siduri (Ordinal Value) — each letter counted by plain alphabet position, 1-22.
• Mispar Gadol (Full/Sofit Value) — like Standard, but final letter forms get their own values (500-900).
• Mispar Katan (Reduced Value) — Standard values collapsed to a single digit.
• Atbash — a substitution cipher pairing the first and last letters of the alphabet, then valued with Standard Gematria.
• Albam — a substitution cipher swapping each half of the alphabet, then valued with Standard Gematria.

See the full Hebrew letter value chart for every letter's value under each of these systems.

A famous worked example: חי (chai)

ח (Chet) = 8, י (Yod) = 10. Standard Value: 8 + 10 = 18. "Chai" means "life" in Hebrew, and this single calculation is the reason 18 — and multiples of 18 — carry symbolic weight in Jewish culture, especially in monetary gifts.

Where Hebrew gematria is used

Hebrew gematria appears throughout rabbinic Midrash, in Talmudic discussion, and extensively within Kabbalistic literature, where it was expanded into a meditative practice. For the full historical arc, read The History of Gematria.