When does Hungarian use hyphens in numbers?

Hungarian writes numbers below 2000 as a single closed compound, such as ezerkétszázharmincnégy for 1234. From 2000 upward the convention is to join the thousand-groups with hyphens, which keeps long numbers readable.

What is the difference between kettő and két?

Kettő is the form of two that stands alone or ends a number, while két is used directly before a noun or a magnitude word. So 2 is kettő, but 200 is kétszáz and 2000 is kétezer. The tool applies két before száz, ezer and millió automatically.

How are the tens formed?

Ten is tíz and twenty is húsz, while the teens use the prefix tizen- (tizenegy = 11) and the twenties use huszon- (huszonegy = 21). Thirty is the irregular harminc, and the remaining tens use the -van or -ven suffix, such as negyven for 40.

What range of numbers is supported?

The tool converts whole numbers from 0 up to 999,999,999, covering ones, hundreds, thousands, and millions. Negative numbers and decimals are not supported; enter a non-negative integer.

Is the number sent to a server?

No. The number-to-words conversion runs entirely in your browser as bundled JavaScript. Nothing you enter is uploaded, so the tool also works offline once the page has loaded.

Hungarian Number to Words

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The Hungarian Number to Words tool spells out a whole number in Hungarian, the way it appears on cheques, contracts, and in language exercises. Hungarian numbers have a few features that trip up learners: a closed-compound spelling below 2000, hyphenated groups above, and the two-form kettő / két alternation.

How it works

The tool decomposes the number into millions, thousands, and the final group below 1000, then builds each group from a fixed table. Ones are egy, kettő, három…; the teens use the prefix tizen- (tizenegy = 11) and the twenties huszon- (huszonegy = 21). Tens are tíz, húsz, harminc, negyven…, hundreds use száz, thousands ezer, and millions millió.

Two key rules

Hungarian writes numbers below 2000 as one closed compound (1234 → ezerkétszázharmincnégy) and hyphenates the thousand-groups from 2000 upward. Separately, the digit two has two forms: kettő stands alone or ends a number, but két appears before a magnitude word, so 200 is kétszáz and 2000 is kétezer, not kettőszáz.

234   →  kétszázharmincnégy
1234  →  ezerkétszázharmincnégy
2345  →  kétezer-háromszáznegyvenöt

Tips and notes

Commas and spaces in your input are ignored, so 1 234 and 1234 work the same.
The supported range is 0 to 999,999,999; decimals and negatives are not converted.
Below 2000 the output is one unbroken word; that is correct Hungarian orthography, not a bug.