About GematriaCalculator

GematriaCalculator was built on a simple premise: the gematria calculators people already use are either thin database lookups with no explanation, or feature-rich tools that hide their best functionality behind a paywall. We wanted a calculator that is simultaneously free, comprehensive, and honest — one that shows its work and cites its sources.

Editorial policy

We treat gematria as what it demonstrably is: a real, well-documented historical and religious practice with deep roots in Hebrew and Greek textual tradition. We are equally direct that using gematria to predict events or "decode" hidden meaning in the news has no scientific support. We write for both believers and skeptics, and we try never to blur the line between "this calculation is mathematically correct" and "this numeric coincidence is meaningful" — the first is a fact, the second is a matter of tradition and interpretation. See Is Gematria Real, or Pseudoscience? for the full treatment.

Sourcing standards

Historical and religious claims on this site (dates, textual attributions, named figures and movements) are written to match mainstream academic and reference consensus, and the major claims on each page are backed by a visible "Sources" list rather than left to stand on their own. Where a claim is genuinely debated among scholars (such as the exact identity behind "666" in the Book of Revelation), we say so explicitly rather than presenting one interpretation as settled fact.

How we verify a cipher before publishing it

We don't publish a letter-value table just because a page online says so. Our standard process:

1. Cross-reference multiple independent sources. We look for the same table reported consistently across unrelated references, not just repeated from one original source.
2. Check it against a known worked example. Where a commonly cited result exists (such as חי = 18 in Hebrew, or "WORD" = 28 in English Qaballa), we recompute it by hand before publishing a calculator, and show that worked example on the page so you can verify it yourself.
3. Say so when we can't verify it. If a cipher's values are genuinely contested or we can't find independent corroboration, we leave it out or flag the uncertainty explicitly, rather than presenting an unverified table as settled fact. This is also how we handle multi-word numerology calculations: our Pythagorean and Chaldean "Expression Number" results are built to the standard convention (reduce each name part to a single digit, sum, then reduce the total, preserving master numbers 11/22/33) after checking that convention against multiple independent numerology references.

How we researched the competitive landscape

Before building this site, we audited the gematria calculators people already use: what each one gets right, where they're thin on content or citations, where they paywall basic functionality, and which search queries they leave poorly served. That audit is what shaped decisions like calculating every cipher for free, showing letter-by-letter breakdowns, and writing history sections with visible sources instead of bare assertions — it's original analysis behind the site's structure, not just the calculators themselves.

Calculation accuracy

Every cipher on this site is implemented as open, auditable code rather than a black-box lookup. If you believe a calculation is incorrect, we want to know — accuracy is the foundation of everything else this site claims about itself. See our Contact page.

Key sources we rely on

Claims specific to a page are cited on that page. For general background across the site, we lean on:

• Encyclopaedia Britannica, "Gematria"
• Jewish Encyclopedia (1906), a foundational public-domain reference for Hebrew gematria's traditional and historical use
• Encyclopaedia Britannica, "Abraham ben Samuel Abulafia"
• The Unicode Standard (Hebrew, Greek, and Coptic character blocks), for correct letter and diacritic handling
• SBL Greek New Testament, a critically edited Greek text used as the reference for isopsephy examples

Who writes and reviews this site

Pages on this site are currently written and calculation-checked by the GematriaCalculator Editorial Team. Reviewed for calculation accuracy and sourcing by our editorial team. See /about/ for our editorial policy and sourcing standards.

We're actively working to add a named contributor with a genuine background in Hebrew/Judaic studies, linguistics, or comparative religion, and will credit them here and on individual articles once confirmed. We'd rather disclose an editorial-team byline honestly than publish an invented persona with fabricated credentials — a fake byline would undermine the exact trust this page exists to establish.