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Greek Numeral Converter
Turn numbers into Ionic Greek numerals and read Greek letter numerals back into decimal.
Convert Greek numerals
Numeral: —
Read back: —
How to use the Greek Numeral Converter
- Enter a number to see it written with Greek numeral letters.
- Read the table to see which letter stands for each value.
- Type or paste Greek letters to convert them back into a number.
Features
- Ionic or Milesian letter numerals
- Thousands marked with the lower numeral sign
- Value table for all twenty seven letters
- Reads typed Greek letters back into decimal
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Frequently Asked Questions
Common questions about the free online greek numeral converter.
Type a number from one to nine thousand nine hundred and ninety nine and the matching Greek
numeral letters appear straight away.
Each of the twenty seven letters stands for a value, with nine letters for units, nine for
tens and nine for hundreds.
The familiar Greek alphabet plus three older signs: digamma for six, koppa for ninety and
sampi for nine hundred.
A small numeral mark is placed before a unit letter, so an alpha with that mark stands for
one thousand.
The Greeks had no letter for zero, so the numerals start at one and the tool explains that
zero cannot be written.
Yes. Type or paste the letters, including the thousand mark if present, and the decimal value
appears in the panel.
Yes. Everything is processed locally in your browser and nothing you type is uploaded or
stored.
Yes. It is completely free, needs no account and places no limit on how many numbers you
convert.
Last updated: October 10, 2026