# Greek Gematria Calculator (Isopsephy)

URL: https://speedycalculator.com/calculators/conversion/greek-gematria/
Last updated: 2026-10-25

> The Greek gematria calculator finds the isopsephy value of Greek words: each letter has a number (α=1, β=2 … ω=800, including the archaic stigma, koppa and sampi) and the values are added. You can type Greek directly or use Latin transliteration. Everything is calculated in your browser; nothing you type is sent to our server.

## Inputs

- Input
- Word or phrase

## Results

- Isopsephy value
- Greek letters counted
- Letters used
- Letter values

## Formula

```
α1 β2 γ3 δ4 ε5 ϛ6 ζ7 η8 θ9 ι10 κ20 λ30 μ40 ν50 ξ60 ο70 π80 ϙ90 ρ100 σ/ς200 τ300 υ400 φ500 χ600 ψ700 ω800 ϡ900
```

## Explanation

Ancient Greeks wrote numbers with letters, so every word also had a numeric value. The practice, called isopsephy, appears in ancient graffiti and early Christian writing; Ἰησοῦς (Jesus) famously totals 888.

### How to use the Greek Gematria Calculator

- **Input**
- **Word or phrase**

Everything runs in your browser, so results appear instantly and nothing you type is sent to a server.

### How it works

Accents and breathing marks are removed, each Greek letter is looked up, and the values are added. In transliteration mode, th, ph, ch and ps are read as single Greek letters.

## Worked example

Inputs — Input: Greek letters; Word or phrase: Ἰησοῦς.

Results — **Isopsephy value = 888**; Greek letters counted = 6; Letters used = ιησους; Letter values = ι=10 + η=8 + σ=200 + ο=70 + υ=400 + ς=200.

## FAQ

**What is the isopsephy of Ἰησοῦς?**
888.

**Why are there letters not in the modern alphabet?**
Stigma (6), koppa (90) and sampi (900) survived only as numerals.

**What formula does the Greek Gematria Calculator use?**
α1 β2 γ3 δ4 ε5 ϛ6 ζ7 η8 θ9 ι10 κ20 λ30 μ40 ν50 ξ60 ο70 π80 ϙ90 ρ100 σ/ς200 τ300 υ400 φ500 χ600 ψ700 ω800 ϡ900.


## Sources

- [Encyclopaedia Britannica – Greek numerals](https://www.britannica.com/topic/numeral#ref797082)