Greek Gematria Calculator

Isopsephy (Greek: ἰσόψηφος, "equal in number") is the Greek practice of summing the numerical values assigned to letters of the alphabet. It dates back to classical antiquity and shows up in early Christian texts such as the famous Revelation 13:18 reference to a number, as well as in Greek inscriptions, Sibylline Oracles, and Pythagorean writings. The system is essentially the Greek counterpart of Hebrew gematria.

Standard Milesian numerals: α=1, β=2, γ=3, δ=4, ε=5, ζ=7, η=8, θ=9, ι=10, κ=20, λ=30, μ=40, ν=50, ξ=60, ο=70, π=80, ρ=100, σ/ς=200, τ=300, υ=400, φ=500, χ=600, ψ=700, ω=800. Three obsolete numeral letters fill the gaps: digamma (or stigma) = 6, koppa = 90, and sampi = 900.

We normalize them away. ή, ώ, ᾳ, Ἰ, and similar accented forms are treated as their base letter (η, ω, α, Ι), so you can paste real Greek text from manuscripts or modern editions without stripping diacritics yourself.

No. Α and α both equal 1, just as Β and β both equal 2. Greek isopsephy is case-insensitive — only the letter identity matters.

Ἰησοῦς in standard isopsephy comes to 888, often noted by early Christian writers as a counterpoint to the Revelation 13:18 number 666 (which itself spells out a Greek phrase under one common interpretation). Calculate it for yourself with the Iesous example above — the letter-by-letter table shows how 888 is reached.

The fastest way is to copy and paste from a Greek source. The example buttons on this page are good starting points. macOS, Windows, and ChromeOS all support adding a Greek keyboard layout in Settings → Language.

No. Two words sharing an isopsephy value means their letter sums are equal — nothing more. Some traditions read significance into matches; we leave that interpretation to you. The math is what we publish.