Numbers in various languages

The following tables list the cardinal numbers from 0 to 20 in various languages. Numbers with question marks mean the exact form of the number is uncertain, while those with asterisks are reconstructed forms. All numbers are written in the Latin alphabet; this is because some native scripts (particularly for constructed languages) may not be supported in Unicode, although if possible the native script may be used as well. Some numbers may also be written in the International Phonetic Alphabet.

Indo-European Languages
{| class="wikitable" ! Language !! 0 !! 1 !! 2 !! 3 !! 4 !! 5 !! 6 !! 7 !! 8 !! 9 !! 10 !! 11 !! 12 !! 13 !! 14 !! 15 !! 16 !! 17 !! 18 !! 19 !! 20
 * - style="text-align: center;"
 * - style="text-align: center;"
 * Proto-Indo-European || || *oinos || *duwou || *treies || *kʷetwores || *penkʷe || *s(w)eḱs || *septṃ || *oḱtou || *newṇ || *deḱṃt || || || || || || || || || || *duidḱmti
 * colspan=22|
 * colspan=22|

Germanic Languages
! Language !! 0 !! 1 !! 2 !! 3 !! 4 !! 5 !! 6 !! 7 !! 8 !! 9 !! 10 !! 11 !! 12 !! 13 !! 14 !! 15 !! 16 !! 17 !! 18 !! 19 !! 20
 * - style="text-align: center;"
 * - style="text-align: center;"
 * English || zero /ˈzɪə.ɹəʊ/ /ˈziɹ.oʊ/ || one /wʌn/ || two /tuː/ /tu/ || three /θɹiː/ /θɹi/ || four /fɔː/ /fɔːɹ/ || five /faɪv/ || six /sɪks/ || seven /ˈsɛv.ən/ || eight /eɪt/ || nine /naɪn/ || ten /tɛn/ || eleven /ɪˈlɛv.ən/ || twelve /twɛlv/ || thirteen /ˈθɜː.tiːn/ /ˈθɝ.tin/ || fourteen /ˈfɔː.tiːn/ /ˈfɔɹ.tin/ || fifteen /ˈfɪf.tiːn/ || sixteen /ˈsɪk.stiːn/ || seventeen /ˈsɛv.ən.tiːn/ || eighteen /ˈeɪ.tiːn/ || nineteen /ˈnaɪn.tiːn/ || twenty /ˈtwɛnti/
 * - style="text-align: center;"
 * German || null /nʊl/ || eins /aɪ̯ns/ || zwei /t͡svaɪ̯/ || drei /dʁaɪ̯/ || vier /fiːɐ̯/ || fünf /fʏnf/ || sechs /zɛks/ || sieben /ˈziːbən/ || acht /axt/ || neun /nɔɪ̯n/ || zehn /t͡seːn/ || elf /ɛlf/ || zwölf /t͡svœlf/ || dreizehn /ˈdʀaɪ̯t͡seːn/ || vierzehn /fiːɐ̯t͡seːn/ || fünfzehn /ˈfʏnft͡seːn/ || sechzehn /ˈzɛçt͡seːn/ || siebzehn /ˈziːpt͡seːn/ || achtzehn /ˈaxt͡seːn/ || neunzehn /ˈnɔɪ̯nt͡seːn/ || zwanzig /ˈt͡svant͡sɪç/
 * colspan=22|
 * colspan=22|

Italic Languages
! Language !! 0 !! 1 !! 2 !! 3 !! 4 !! 5 !! 6 !! 7 !! 8 !! 9 !! 10 !! 11 !! 12 !! 13 !! 14 !! 15 !! 16 !! 17 !! 18 !! 19 !! 20
 * - style="text-align: center;"
 * - style="text-align: center;"
 * Classical Latin || nūllus, nihil || ūnus || duo || trēs || quattuor || quīnque || sex || septem || octō || novem || decem || ūndecim || duodecim || tredecim || quattuordecim || quīndecim || sēdecim || septendecim || duodēvīgintī || ūndēvīgintī || vīgintī
 * colspan=22|
 * colspan=22|

Romance Languages
! Language !! 0 !! 1 !! 2 !! 3 !! 4 !! 5 !! 6 !! 7 !! 8 !! 9 !! 10 !! 11 !! 12 !! 13 !! 14 !! 15 !! 16 !! 17 !! 18 !! 19 !! 20
 * - style="text-align: center;"
 * - style="text-align: center;"
 * French || zéro /ze.ʁɔ/ || un (m) /œ̃/ une (f) /yn/ || deux /dø/ || trois /tʁwɑ/ || quatre /katʁ/ || cinq /sɛ̃k/ || six /sis/ || sept /sɛt/ || huit /ɥit/ || neuf /nœf/ || dix /dis/ || onze /ɔ̃z/ || douze /duz/ || treize /tʁɛz/ || quatorze /ka.tɔʁz/ || quinze /kɛ̃z/ || seize /sɛz/ || dix-sept /dis.sɛt/ || dix-huit /diz.ɥit/ || dix-neuf /diz.nœf/ || vingt /vɛ̃/
 * colspan=22|
 * colspan=22|

Hellenic Languages
! Language !! 0 !! 1 !! 2 !! 3 !! 4 !! 5 !! 6 !! 7 !! 8 !! 9 !! 10 !! 11 !! 12 !! 13 !! 14 !! 15 !! 16 !! 17 !! 18 !! 19 !! 20
 * - style="text-align: center;"
 * - style="text-align: center;"
 * Ancient Greek || μηδέν mēden || εἷς heis (m) μία mia (f) ἕν hen (n) || δύο duo || τρεῖς treis (m,f) τρία tria (n) || τέσσαρες tessares (m,f) τέσσαρα tessara (n) || πέντε pente || ἕξ hex || ἑπτά hepta || ὀκτώ oktō || ἐννέα ennea || δέκα deka || ἕνδεκα hendeka || δώδεκα dōdeka || τρεισκαίδεκα treiskaideka || τέσσαρες καί δέκα tessares kai deka || πεντεκαίδεκα pentekaideka || ἑκκαίδεκα hekkaideka || ἑπτακαίδεκα heptakaideka || ὀκτωκαίδεκα oktōkaideka || ἐννεακαίδεκα enneakaideka || εἴκοσι eikosi
 * }