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Isopsephy is the ancient Greek practice of summing the numeric value of each letter in a word or phrase — the Greek equivalent of Hebrew gematria. This tool computes the standard isopsephy value of any Greek text using the full 27-symbol ancient Greek numeral system.
How it works
The 24 letters of the modern Greek alphabet carry fixed numeric values (Alpha=1 ... Iota=10 ... Rho=100 ... Omega=800), and the 3 archaic numeral-only letters fill the remaining gaps: digamma/stigma=6, qoppa=90, and sampi=900. Both uppercase and lowercase letters (and final sigma "ς") are recognized, and every recognized letter's value is summed.
- Enter greek text.
- Click Calculate to see your results.
Examples
ΙΗΣΟΥΣ (Jesus)
Ι(10) + Η(8) + Σ(200) + Ο(70) + Υ(400) + Σ(200) = 888, a famous isopsephy value discussed since antiquity.
Who should use it
- Studying ancient Greek numerology and isopsephy, including early Christian and Gnostic numerology.
- Exploring famous isopsephy values from classical texts.
Industry applications
- Classics and ancient history
- Religious studies
- Linguistics
Advantages
- Implements the complete 27-symbol Greek numeral system, including the 3 archaic letters.
- Shows a full per-letter breakdown alongside the total.
Limitations
- Archaic letters (digamma, qoppa, sampi) are rare in modern text, so most everyday Greek words will only use the 24 standard letters.
Common mistakes to avoid
- Typing Latin letters that look similar to Greek ones (e.g. Latin "P" instead of Greek "Ρ" Rho) — only actual Greek Unicode characters are recognized.
Best practices
- Use an actual Greek keyboard layout or Unicode input method to ensure the text uses real Greek letters rather than visually similar Latin lookalikes.
Tips
- For historical/religious isopsephy analysis, remember the calculation is case-insensitive and treats final sigma "ς" the same as regular sigma "σ".