What this site is
A fast, accurate calculator for gematria — the practice of adding up the number-values of the letters in a word — covering the English, Hebrew and Greek systems people actually use, with the arithmetic shown for every result.
Type a word on the homepage and you get its value in fourteen ciphers at once: the four “base” English ciphers, the Agrippa-derived table most sites call “Jewish gematria”, the Sumerian, Chaldean, Septenary and Francis Bacon variants, the four classical Hebrew methods (Mispar Hechrachi, Gadol, Siduri and Katan) and Greek isopsephy. Each cipher also has its own page explaining where the table came from and what it does and does not establish.
Alongside the calculator there are printable cipher charts, a plain-language guide to gematria, its history, and an honest page on what the numbers can and cannot tell you.
Why it exists
Gematria calculators are not hard to build. The arithmetic is trivial. What is hard — and what almost nobody does — is telling you which arithmetic you are doing.
Across the web the same names mean different things. “English gematria” is A = 1 … Z = 26 on one site and A = 6 … Z = 156 on another. “Jewish gematria” usually means a sixteenth-century Latin table applied to English letters, not Hebrew at all. Hebrew calculators frequently blur the standard values with the “large” values that count final letters as 500–900. None of these conventions is wrong, but a number is meaningless if you cannot say how it was produced.
This site was built to fix that. Behind every cipher is a methodology entry naming the primary or scholarly source for its table and recording any known disagreement. If you find a value here that differs from another calculator, the methodology page should tell you exactly why.
The second reason is simpler: the most popular calculators are slow, ad-heavy, and some of them block search engines and readers from seeing their content at all. This one is a few kilobytes of static HTML that works on any device, loads in well under a second, and shows no advertising.
Editorial principles
- Neutral utility.
- Gematria is presented as what it historically is: an interpretive practice used in Jewish, Christian, Greek and modern esoteric traditions. The site explains what practitioners do and claim. It does not assert that number matches predict events or prove hidden intent, and it does not sell readings.
- Every table sourced.
- No cipher ships without a citation. Where the source is a historical text — Agrippa’s De Occulta Philosophia, the Talmud, Suetonius — the link goes to an accessible edition of the text itself, not to another calculator.
- Disagreements stated, not hidden.
- When conventions conflict (the W in “Jewish gematria”, final letters in Hebrew, the 24- versus 26-letter Bacon alphabet), the site names the convention it follows and the alternative, so you can compare results with any other tool.
- Arithmetic is exact; meaning is interpretation.
- The same input and cipher always gives the same result, and the letter-by-letter breakdown lets you check it by hand. What a value “means” is a matter of tradition, and the site labels it as such.
- Nothing hidden behind JavaScript.
- Every page’s text, tables and default results are in the HTML itself. Scripts add live recalculation; they never gate content.
How the calculator is built
The site is generated as static pages and served from a global edge network. The calculator is a single small script that runs in your browser: your text is never sent to a server, there is no account, and the optional “recent phrases” list lives only in your own browser’s storage. There are no advertising or analytics trackers that read what you type.
All fourteen cipher tables live in one shared module used both when the pages are built and when you type, so the numbers a search engine sees are the same numbers you see. Hebrew vowel points and cantillation marks and Greek accents are stripped before counting, so pointed and unpointed text give the same value; the methodology page lists these rules in full.
The author
Zishan Khan
Zishan Khan is the founder, developer and editor of Online Gematria Calculator. Zishan designed the site, wrote its cipher engine, and researched and wrote every page, including the methodology and sources that back the tables — and is responsible for the site’s editorial stance and for correcting it when it is wrong.
Reach Zishan at hello@onlinegematriacalculator.com or via the contact page.
Articles on this site carry Zishan’s byline and a visible publication date. The author has no commercial relationship with any calculator, book or practitioner mentioned here, and the site carries no sponsored content.
Corrections
If a value, a table or a historical claim on this site is wrong, please say so. Corrections to cipher tables are the highest priority and are usually published within a few days; the change is noted on the methodology changelog so that anyone who relied on the old value can see what moved and why. Use the contact page, and include the word or phrase, the cipher, the value you expected and — ideally — the source you are comparing against.