Interactive Greek Number Calculator
Convert modern numbers into Greek numerals, or calculate the numeric value of Greek letters (isopsephy).
1) Arabic Number → Greek Numeral
2) Greek Text → Numeric Value
Tip: accents are ignored, and final sigma (ς) is treated as sigma (σ).
What is a Greek number calculator?
A Greek number calculator is a tool that helps you work with the classical Greek numeral system. In ancient and medieval usage, Greek letters were used as numbers. This system is still relevant today for historical studies, biblical and classical language work, manuscripts, inscriptions, and curiosity-driven numerology research.
This page gives you two calculators in one:
- Arabic number to Greek numeral conversion (for example, 2026 → ͵βκϛʹ).
- Greek text to numeric value (isopsephy), where each letter contributes a value and the total is summed.
How the Greek numeral system works
The Greek alphabetic numeral system assigns values to letters in groups: ones, tens, and hundreds. It also uses archaic letters to complete the sequence.
| Group | Letters and Values |
|---|---|
| Ones | α=1, β=2, γ=3, δ=4, ε=5, ϛ=6, ζ=7, η=8, θ=9 |
| Tens | ι=10, κ=20, λ=30, μ=40, ν=50, ξ=60, ο=70, π=80, ϟ=90 |
| Hundreds | ρ=100, σ=200, τ=300, υ=400, φ=500, χ=600, ψ=700, ω=800, ϡ=900 |
In notation, a right keraia mark (ʹ) often indicates a numeral. Thousands are commonly marked with a left keraia (͵), so values above 999 can be represented by combining these conventions.
How to use this calculator
Convert number to Greek numeral
- Type a whole number from 1 to 999999.
- Click Convert Number.
- Read the Greek numeral in the result box.
Calculate value of Greek letters
- Type Greek text (single word or multiple letters).
- Click Calculate Value.
- The tool shows a total and a per-letter breakdown.
Worked examples
Example 1: 314
314 breaks into 300 + 10 + 4. In Greek numerals this is τιδʹ (τ=300, ι=10, δ=4).
Example 2: 2026
2026 is 2000 + 20 + 6. This calculator represents it as ͵βκϛʹ.
Example 3: Greek word value
If you enter σοφια, the calculator computes: σ(200) + ο(70) + φ(500) + ι(10) + α(1) = 781.
Why people use Greek number tools
- Reading ancient texts, manuscript headings, and chapter markers.
- Studying epigraphy, papyri, and historical chronology notation.
- Exploring isopsephy in literature, rhetoric, and symbolic interpretation.
- Learning Greek language history in a practical way.
Practical notes and limitations
No single convention fits every historical period. Regional and manuscript practices can vary. This tool follows a common modernized representation suitable for study and general use. If you are publishing academic work, verify notation against the specific corpus style guide you are using.
Also note that this calculator ignores punctuation and spaces when calculating letter values, and it normalizes accented characters for convenience.
FAQ
Does this support uppercase Greek letters?
Yes. Input is normalized internally, so uppercase and lowercase work.
Do accents change the value?
No. Accents are stripped before calculation; base letters determine value.
Can I use this for biblical or classical studies?
Absolutely. It is a quick helper for students, translators, and hobbyists working with Greek numerals and isopsephy.