Why does Greek number gender matter?

Some Greek cardinals change form to agree with the noun's gender. One is ένας (m), μία (f), ένα (n); three is τρεις (m/f) or τρία (n); four is τέσσερις (m/f) or τέσσερα (n); and the hundreds take -οι/-ες/-α endings. The right form depends on what you are counting.

Which numbers actually change?

1, 3, and 4 change in the units, and every hundred from 200 to 900 changes its ending. Two (δύο) and all the tens and the word for thousand are invariable, so only those specific positions are affected by gender.

How are the hundreds formed?

200 is διακόσιοι (m), διακόσιες (f), διακόσια (n), and the pattern continues τριακόσι-, τετρακόσι-, πεντακόσι- and so on through εννιακόσι-. The chosen gender sets the -οι/-ες/-α ending across all of them.

What about thousands and millions?

χίλια is one thousand (used as the neuter base) and χιλιάδες is the plural for multiples, as in δύο χιλιάδες. εκατομμύριο/-α handles millions. The leading 'one thousand' is just χίλια, without a separate word for one.

Does it handle zero and large numbers?

Zero is μηδέν. The tool supports values up to the billions, grouping digits into thousands and millions and applying χιλιάδες, εκατομμύρια, and δισεκατομμύρια as needed.

Greek Number to Words

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Modern Greek cardinal numbers mostly stay the same regardless of gender, but a few — 1, 3, 4 and every hundred — change their ending to agree with the noun they count. This tool spells a whole number in Greek and lets you pick the gender so those forms come out correctly.

How it works

Greek builds numbers from units (ένα, δύο, τρία…), tens (δέκα, είκοσι, τριάντα…), hundreds (εκατό, διακόσια, τριακόσια…), and the scale words χιλιάδες (thousands) and εκατομμύρια (millions).

The gender-sensitive positions are:

1  → ένας  (m) / μία  (f) / ένα  (n)
3  → τρεις (m/f)        / τρία   (n)
4  → τέσσερις (m/f)     / τέσσερα (n)
hundreds 200–900 → -οι (m) / -ες (f) / -α (n)
        e.g. 300 = τριακόσιοι / τριακόσιες / τριακόσια

Everything else — two, the tens, εκατό for exactly 100, and χίλια/χιλιάδες — is invariable. The number is split into groups of three digits; each group is spelled and suffixed with the right scale word, with χιλιάδες and εκατομμύρια taking plural forms for counts above one.

Tips and example

1 is ένας / μία / ένα depending on gender; 3 is τρεις or τρία.
334 in feminine is τριακόσιες τριάντα τέσσερις; in neuter it is τριακόσια τριάντα τέσσερα.
2000 is δύο χιλιάδες, since χιλιάδες is the plural used for multiples of a thousand, while exactly 1000 is χίλια.
Choose the gender to match the noun you are counting — euros (neuter, ευρώ), people (masculine/feminine), hours (feminine, ώρες), and so on.