Which variety of Armenian does this use?

It uses Eastern Armenian, the standard form used in Armenia, with words such as հազար (thousand), միլիոն (million) and միլիարդ (billion).

How does it handle the teens?

The teens 11-19 use the joined "տասն" form — for example տասնմեկ (11) and տասնինը (19) — exactly as written in Armenian.

Is my number sent anywhere?

No — the conversion runs entirely in your browser with no network requests.

Number to Words in Armenian

Convert any number into Eastern Armenian words, in your browser.

Spell numbers in Armenian

Type any whole number and this tool spells it out in Eastern Armenian — for example 1234 becomes հազար երկու հարյուր երեսուն չորս.

It handles հազար (thousand), միլիոն (million) and միլիարդ (billion), the joined teen forms (տասնմեկ, տասներկու …) and the standalone “հազար” for an exact one thousand. Everything happens in your browser — nothing is uploaded.