How To: Ordinal Number 9 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 Written Out in Words Form, Indicates Position or Order in a List. Numeral 9 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 Converted to Words in US American English in Eight Different Letter Cases, Title Case, Sentence Case and Start Case Included

Ordinal number 9 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999th converted and written out in words, in (US) American English

nine novemnonagintillion nine hundred ninety-nine octononagintillion nine hundred ninety-nine septennonagintillion nine hundred ninety-nine sexnonagintillion nine hundred ninety-nine quinnonagintillion nine hundred ninety-nine quattuornonagintillion nine hundred ninety-nine trenonagintillion nine hundred ninety-nine duononagintillion nine hundred ninety-nine unnonagintillion nine hundred ninety-nine nonagintillion nine hundred ninety-nine novemoctogintillion nine hundred ninety-nine octooctogintillion nine hundred ninety-nine septenoctogintillion nine hundred ninety-nine sexoctogintillion nine hundred ninety-nine quinoctogintillion nine hundred ninety-nine quattuoroctogintillion nine hundred ninety-nine treoctogintillion nine hundred ninety-nine duooctogintillion nine hundred ninety-nine unoctogintillion nine hundred ninety-nine octogintillion nine hundred ninety-nine novemseptuagintillion nine hundred ninety-nine octoseptuagintillion nine hundred ninety-nine septenseptuagintillion nine hundred ninety-nine sexseptuagintillion nine hundred ninety-nine quinseptuagintillion nine hundred ninety-nine quattuorseptuagintillion nine hundred ninety-nine treseptuagintillion nine hundred ninety-nine duoseptuagintillion nine hundred ninety-nine unseptuagintillion nine hundred ninety-nine septuagintillion nine hundred ninety-nine novemsexagintillion nine hundred ninety-nine octosexagintillion nine hundred ninety-nine septensexagintillion nine hundred ninety-nine sexsexagintillion nine hundred ninety-nine quinsexagintillion nine hundred ninety-nine quattuorsexagintillion nine hundred ninety-nine tresexagintillion nine hundred ninety-nine duosexagintillion nine hundred ninety-nine unsexagintillion nine hundred ninety-nine sexagintillion nine hundred ninety-nine novemquinquagintillion nine hundred ninety-nine octoquinquagintillion nine hundred ninety-nine septenquinquagintillion nine hundred ninety-nine sexquinquagintillion nine hundred ninety-nine quinquinquagintillion nine hundred ninety-nine quattuorquinquagintillion nine hundred ninety-nine trequinquagintillion nine hundred ninety-nine duoquinquagintillion nine hundred ninety-nine unquinquagintillion nine hundred ninety-nine quinquagintillion nine hundred ninety-nine novemquadragintillion nine hundred ninety-nine octoquadragintillion nine hundred ninety-nine septenquadragintillion nine hundred ninety-nine sexquadragintillion nine hundred ninety-nine quinquadragintillion nine hundred ninety-nine quattuorquadragintillion nine hundred ninety-nine trequadragintillion nine hundred ninety-nine duoquadragintillion nine hundred ninety-nine unquadragintillion nine hundred ninety-nine quadragintillion nine hundred ninety-nine novemtrigintillion nine hundred ninety-nine octotrigintillion nine hundred ninety-nine septentrigintillion nine hundred ninety-nine sextrigintillion nine hundred ninety-nine quintrigintillion nine hundred ninety-nine quattuortrigintillion nine hundred ninety-nine tretrigintillion nine hundred ninety-nine duotrigintillion nine hundred ninety-nine untrigintillion nine hundred ninety-nine trigintillion nine hundred ninety-nine novemvigintillion nine hundred ninety-nine octovigintillion nine hundred ninety-nine septenvigintillion nine hundred ninety-nine sexvigintillion nine hundred ninety-nine quinvigintillion nine hundred ninety-nine quattuorvigintillion nine hundred ninety-nine trevigintillion nine hundred ninety-nine duovigintillion nine hundred ninety-nine unvigintillion nine hundred ninety-nine vigintillion nine hundred ninety-nine novemdecillion nine hundred ninety-nine octodecillion nine hundred ninety-nine septendecillion nine hundred ninety-nine sexdecillion nine hundred ninety-nine quindecillion nine hundred ninety-nine quattuordecillion nine hundred ninety-nine tredecillion nine hundred ninety-nine duodecillion nine hundred ninety-nine undecillion nine hundred ninety-nine decillion nine hundred ninety-nine nonillion nine hundred ninety-nine octillion nine hundred ninety-nine septillion nine hundred ninety-nine sextillion nine hundred ninety-nine quintillion nine hundred ninety-nine quadrillion nine hundred ninety-nine trillion nine hundred ninety-nine billion nine hundred ninety-nine million nine hundred ninety-nine thousand nine hundred ninety-ninth

Letter case 2 of 8
9 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999th SPELLED OUT IN:
UPPERCASE
ALL UPPERCASE LETTERS:

NINE NOVEMNONAGINTILLION NINE HUNDRED NINETY-NINE OCTONONAGINTILLION NINE HUNDRED NINETY-NINE SEPTENNONAGINTILLION NINE HUNDRED NINETY-NINE SEXNONAGINTILLION NINE HUNDRED NINETY-NINE QUINNONAGINTILLION NINE HUNDRED NINETY-NINE QUATTUORNONAGINTILLION NINE HUNDRED NINETY-NINE TRENONAGINTILLION NINE HUNDRED NINETY-NINE DUONONAGINTILLION NINE HUNDRED NINETY-NINE UNNONAGINTILLION NINE HUNDRED NINETY-NINE NONAGINTILLION NINE HUNDRED NINETY-NINE NOVEMOCTOGINTILLION NINE HUNDRED NINETY-NINE OCTOOCTOGINTILLION NINE HUNDRED NINETY-NINE SEPTENOCTOGINTILLION NINE HUNDRED NINETY-NINE SEXOCTOGINTILLION NINE HUNDRED NINETY-NINE QUINOCTOGINTILLION NINE HUNDRED NINETY-NINE QUATTUOROCTOGINTILLION NINE HUNDRED NINETY-NINE TREOCTOGINTILLION NINE HUNDRED NINETY-NINE DUOOCTOGINTILLION NINE HUNDRED NINETY-NINE UNOCTOGINTILLION NINE HUNDRED NINETY-NINE OCTOGINTILLION NINE HUNDRED NINETY-NINE NOVEMSEPTUAGINTILLION NINE HUNDRED NINETY-NINE OCTOSEPTUAGINTILLION NINE HUNDRED NINETY-NINE SEPTENSEPTUAGINTILLION NINE HUNDRED NINETY-NINE SEXSEPTUAGINTILLION NINE HUNDRED NINETY-NINE QUINSEPTUAGINTILLION NINE HUNDRED NINETY-NINE QUATTUORSEPTUAGINTILLION NINE HUNDRED NINETY-NINE TRESEPTUAGINTILLION NINE HUNDRED NINETY-NINE DUOSEPTUAGINTILLION NINE HUNDRED NINETY-NINE UNSEPTUAGINTILLION NINE HUNDRED NINETY-NINE SEPTUAGINTILLION NINE HUNDRED NINETY-NINE NOVEMSEXAGINTILLION NINE HUNDRED NINETY-NINE OCTOSEXAGINTILLION NINE HUNDRED NINETY-NINE SEPTENSEXAGINTILLION NINE HUNDRED NINETY-NINE SEXSEXAGINTILLION NINE HUNDRED NINETY-NINE QUINSEXAGINTILLION NINE HUNDRED NINETY-NINE QUATTUORSEXAGINTILLION NINE HUNDRED NINETY-NINE TRESEXAGINTILLION NINE HUNDRED NINETY-NINE DUOSEXAGINTILLION NINE HUNDRED NINETY-NINE UNSEXAGINTILLION NINE HUNDRED NINETY-NINE SEXAGINTILLION NINE HUNDRED NINETY-NINE NOVEMQUINQUAGINTILLION NINE HUNDRED NINETY-NINE OCTOQUINQUAGINTILLION NINE HUNDRED NINETY-NINE SEPTENQUINQUAGINTILLION NINE HUNDRED NINETY-NINE SEXQUINQUAGINTILLION NINE HUNDRED NINETY-NINE QUINQUINQUAGINTILLION NINE HUNDRED NINETY-NINE QUATTUORQUINQUAGINTILLION NINE HUNDRED NINETY-NINE TREQUINQUAGINTILLION NINE HUNDRED NINETY-NINE DUOQUINQUAGINTILLION NINE HUNDRED NINETY-NINE UNQUINQUAGINTILLION NINE HUNDRED NINETY-NINE QUINQUAGINTILLION NINE HUNDRED NINETY-NINE NOVEMQUADRAGINTILLION NINE HUNDRED NINETY-NINE OCTOQUADRAGINTILLION NINE HUNDRED NINETY-NINE SEPTENQUADRAGINTILLION NINE HUNDRED NINETY-NINE SEXQUADRAGINTILLION NINE HUNDRED NINETY-NINE QUINQUADRAGINTILLION NINE HUNDRED NINETY-NINE QUATTUORQUADRAGINTILLION NINE HUNDRED NINETY-NINE TREQUADRAGINTILLION NINE HUNDRED NINETY-NINE DUOQUADRAGINTILLION NINE HUNDRED NINETY-NINE UNQUADRAGINTILLION NINE HUNDRED NINETY-NINE QUADRAGINTILLION NINE HUNDRED NINETY-NINE NOVEMTRIGINTILLION NINE HUNDRED NINETY-NINE OCTOTRIGINTILLION NINE HUNDRED NINETY-NINE SEPTENTRIGINTILLION NINE HUNDRED NINETY-NINE SEXTRIGINTILLION NINE HUNDRED NINETY-NINE QUINTRIGINTILLION NINE HUNDRED NINETY-NINE QUATTUORTRIGINTILLION NINE HUNDRED NINETY-NINE TRETRIGINTILLION NINE HUNDRED NINETY-NINE DUOTRIGINTILLION NINE HUNDRED NINETY-NINE UNTRIGINTILLION NINE HUNDRED NINETY-NINE TRIGINTILLION NINE HUNDRED NINETY-NINE NOVEMVIGINTILLION NINE HUNDRED NINETY-NINE OCTOVIGINTILLION NINE HUNDRED NINETY-NINE SEPTENVIGINTILLION NINE HUNDRED NINETY-NINE SEXVIGINTILLION NINE HUNDRED NINETY-NINE QUINVIGINTILLION NINE HUNDRED NINETY-NINE QUATTUORVIGINTILLION NINE HUNDRED NINETY-NINE TREVIGINTILLION NINE HUNDRED NINETY-NINE DUOVIGINTILLION NINE HUNDRED NINETY-NINE UNVIGINTILLION NINE HUNDRED NINETY-NINE VIGINTILLION NINE HUNDRED NINETY-NINE NOVEMDECILLION NINE HUNDRED NINETY-NINE OCTODECILLION NINE HUNDRED NINETY-NINE SEPTENDECILLION NINE HUNDRED NINETY-NINE SEXDECILLION NINE HUNDRED NINETY-NINE QUINDECILLION NINE HUNDRED NINETY-NINE QUATTUORDECILLION NINE HUNDRED NINETY-NINE TREDECILLION NINE HUNDRED NINETY-NINE DUODECILLION NINE HUNDRED NINETY-NINE UNDECILLION NINE HUNDRED NINETY-NINE DECILLION NINE HUNDRED NINETY-NINE NONILLION NINE HUNDRED NINETY-NINE OCTILLION NINE HUNDRED NINETY-NINE SEPTILLION NINE HUNDRED NINETY-NINE SEXTILLION NINE HUNDRED NINETY-NINE QUINTILLION NINE HUNDRED NINETY-NINE QUADRILLION NINE HUNDRED NINETY-NINE TRILLION NINE HUNDRED NINETY-NINE BILLION NINE HUNDRED NINETY-NINE MILLION NINE HUNDRED NINETY-NINE THOUSAND NINE HUNDRED NINETY-NINTH

Nine Novemnonagintillion Nine Hundred Ninety-Nine Octononagintillion Nine Hundred Ninety-Nine Septennonagintillion Nine Hundred Ninety-Nine Sexnonagintillion Nine Hundred Ninety-Nine Quinnonagintillion Nine Hundred Ninety-Nine Quattuornonagintillion Nine Hundred Ninety-Nine Trenonagintillion Nine Hundred Ninety-Nine Duononagintillion Nine Hundred Ninety-Nine Unnonagintillion Nine Hundred Ninety-Nine Nonagintillion Nine Hundred Ninety-Nine Novemoctogintillion Nine Hundred Ninety-Nine Octooctogintillion Nine Hundred Ninety-Nine Septenoctogintillion Nine Hundred Ninety-Nine Sexoctogintillion Nine Hundred Ninety-Nine Quinoctogintillion Nine Hundred Ninety-Nine Quattuoroctogintillion Nine Hundred Ninety-Nine Treoctogintillion Nine Hundred Ninety-Nine Duooctogintillion Nine Hundred Ninety-Nine Unoctogintillion Nine Hundred Ninety-Nine Octogintillion Nine Hundred Ninety-Nine Novemseptuagintillion Nine Hundred Ninety-Nine Octoseptuagintillion Nine Hundred Ninety-Nine Septenseptuagintillion Nine Hundred Ninety-Nine Sexseptuagintillion Nine Hundred Ninety-Nine Quinseptuagintillion Nine Hundred Ninety-Nine Quattuorseptuagintillion Nine Hundred Ninety-Nine Treseptuagintillion Nine Hundred Ninety-Nine Duoseptuagintillion Nine Hundred Ninety-Nine Unseptuagintillion Nine Hundred Ninety-Nine Septuagintillion Nine Hundred Ninety-Nine Novemsexagintillion Nine Hundred Ninety-Nine Octosexagintillion Nine Hundred Ninety-Nine Septensexagintillion Nine Hundred Ninety-Nine Sexsexagintillion Nine Hundred Ninety-Nine Quinsexagintillion Nine Hundred Ninety-Nine Quattuorsexagintillion Nine Hundred Ninety-Nine Tresexagintillion Nine Hundred Ninety-Nine Duosexagintillion Nine Hundred Ninety-Nine Unsexagintillion Nine Hundred Ninety-Nine Sexagintillion Nine Hundred Ninety-Nine Novemquinquagintillion Nine Hundred Ninety-Nine Octoquinquagintillion Nine Hundred Ninety-Nine Septenquinquagintillion Nine Hundred Ninety-Nine Sexquinquagintillion Nine Hundred Ninety-Nine Quinquinquagintillion Nine Hundred Ninety-Nine Quattuorquinquagintillion Nine Hundred Ninety-Nine Trequinquagintillion Nine Hundred Ninety-Nine Duoquinquagintillion Nine Hundred Ninety-Nine Unquinquagintillion Nine Hundred Ninety-Nine Quinquagintillion Nine Hundred Ninety-Nine Novemquadragintillion Nine Hundred Ninety-Nine Octoquadragintillion Nine Hundred Ninety-Nine Septenquadragintillion Nine Hundred Ninety-Nine Sexquadragintillion Nine Hundred Ninety-Nine Quinquadragintillion Nine Hundred Ninety-Nine Quattuorquadragintillion Nine Hundred Ninety-Nine Trequadragintillion Nine Hundred Ninety-Nine Duoquadragintillion Nine Hundred Ninety-Nine Unquadragintillion Nine Hundred Ninety-Nine Quadragintillion Nine Hundred Ninety-Nine Novemtrigintillion Nine Hundred Ninety-Nine Octotrigintillion Nine Hundred Ninety-Nine Septentrigintillion Nine Hundred Ninety-Nine Sextrigintillion Nine Hundred Ninety-Nine Quintrigintillion Nine Hundred Ninety-Nine Quattuortrigintillion Nine Hundred Ninety-Nine Tretrigintillion Nine Hundred Ninety-Nine Duotrigintillion Nine Hundred Ninety-Nine Untrigintillion Nine Hundred Ninety-Nine Trigintillion Nine Hundred Ninety-Nine Novemvigintillion Nine Hundred Ninety-Nine Octovigintillion Nine Hundred Ninety-Nine Septenvigintillion Nine Hundred Ninety-Nine Sexvigintillion Nine Hundred Ninety-Nine Quinvigintillion Nine Hundred Ninety-Nine Quattuorvigintillion Nine Hundred Ninety-Nine Trevigintillion Nine Hundred Ninety-Nine Duovigintillion Nine Hundred Ninety-Nine Unvigintillion Nine Hundred Ninety-Nine Vigintillion Nine Hundred Ninety-Nine Novemdecillion Nine Hundred Ninety-Nine Octodecillion Nine Hundred Ninety-Nine Septendecillion Nine Hundred Ninety-Nine Sexdecillion Nine Hundred Ninety-Nine Quindecillion Nine Hundred Ninety-Nine Quattuordecillion Nine Hundred Ninety-Nine Tredecillion Nine Hundred Ninety-Nine Duodecillion Nine Hundred Ninety-Nine Undecillion Nine Hundred Ninety-Nine Decillion Nine Hundred Ninety-Nine Nonillion Nine Hundred Ninety-Nine Octillion Nine Hundred Ninety-Nine Septillion Nine Hundred Ninety-Nine Sextillion Nine Hundred Ninety-Nine Quintillion Nine Hundred Ninety-Nine Quadrillion Nine Hundred Ninety-Nine Trillion Nine Hundred Ninety-Nine Billion Nine Hundred Ninety-Nine Million Nine Hundred Ninety-Nine Thousand Nine Hundred Ninety-Ninth

Letter case 4 of 8
9 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999th written out in words in:
Sentence case
Capital letter to start the sentence:

Nine novemnonagintillion nine hundred ninety-nine octononagintillion nine hundred ninety-nine septennonagintillion nine hundred ninety-nine sexnonagintillion nine hundred ninety-nine quinnonagintillion nine hundred ninety-nine quattuornonagintillion nine hundred ninety-nine trenonagintillion nine hundred ninety-nine duononagintillion nine hundred ninety-nine unnonagintillion nine hundred ninety-nine nonagintillion nine hundred ninety-nine novemoctogintillion nine hundred ninety-nine octooctogintillion nine hundred ninety-nine septenoctogintillion nine hundred ninety-nine sexoctogintillion nine hundred ninety-nine quinoctogintillion nine hundred ninety-nine quattuoroctogintillion nine hundred ninety-nine treoctogintillion nine hundred ninety-nine duooctogintillion nine hundred ninety-nine unoctogintillion nine hundred ninety-nine octogintillion nine hundred ninety-nine novemseptuagintillion nine hundred ninety-nine octoseptuagintillion nine hundred ninety-nine septenseptuagintillion nine hundred ninety-nine sexseptuagintillion nine hundred ninety-nine quinseptuagintillion nine hundred ninety-nine quattuorseptuagintillion nine hundred ninety-nine treseptuagintillion nine hundred ninety-nine duoseptuagintillion nine hundred ninety-nine unseptuagintillion nine hundred ninety-nine septuagintillion nine hundred ninety-nine novemsexagintillion nine hundred ninety-nine octosexagintillion nine hundred ninety-nine septensexagintillion nine hundred ninety-nine sexsexagintillion nine hundred ninety-nine quinsexagintillion nine hundred ninety-nine quattuorsexagintillion nine hundred ninety-nine tresexagintillion nine hundred ninety-nine duosexagintillion nine hundred ninety-nine unsexagintillion nine hundred ninety-nine sexagintillion nine hundred ninety-nine novemquinquagintillion nine hundred ninety-nine octoquinquagintillion nine hundred ninety-nine septenquinquagintillion nine hundred ninety-nine sexquinquagintillion nine hundred ninety-nine quinquinquagintillion nine hundred ninety-nine quattuorquinquagintillion nine hundred ninety-nine trequinquagintillion nine hundred ninety-nine duoquinquagintillion nine hundred ninety-nine unquinquagintillion nine hundred ninety-nine quinquagintillion nine hundred ninety-nine novemquadragintillion nine hundred ninety-nine octoquadragintillion nine hundred ninety-nine septenquadragintillion nine hundred ninety-nine sexquadragintillion nine hundred ninety-nine quinquadragintillion nine hundred ninety-nine quattuorquadragintillion nine hundred ninety-nine trequadragintillion nine hundred ninety-nine duoquadragintillion nine hundred ninety-nine unquadragintillion nine hundred ninety-nine quadragintillion nine hundred ninety-nine novemtrigintillion nine hundred ninety-nine octotrigintillion nine hundred ninety-nine septentrigintillion nine hundred ninety-nine sextrigintillion nine hundred ninety-nine quintrigintillion nine hundred ninety-nine quattuortrigintillion nine hundred ninety-nine tretrigintillion nine hundred ninety-nine duotrigintillion nine hundred ninety-nine untrigintillion nine hundred ninety-nine trigintillion nine hundred ninety-nine novemvigintillion nine hundred ninety-nine octovigintillion nine hundred ninety-nine septenvigintillion nine hundred ninety-nine sexvigintillion nine hundred ninety-nine quinvigintillion nine hundred ninety-nine quattuorvigintillion nine hundred ninety-nine trevigintillion nine hundred ninety-nine duovigintillion nine hundred ninety-nine unvigintillion nine hundred ninety-nine vigintillion nine hundred ninety-nine novemdecillion nine hundred ninety-nine octodecillion nine hundred ninety-nine septendecillion nine hundred ninety-nine sexdecillion nine hundred ninety-nine quindecillion nine hundred ninety-nine quattuordecillion nine hundred ninety-nine tredecillion nine hundred ninety-nine duodecillion nine hundred ninety-nine undecillion nine hundred ninety-nine decillion nine hundred ninety-nine nonillion nine hundred ninety-nine octillion nine hundred ninety-nine septillion nine hundred ninety-nine sextillion nine hundred ninety-nine quintillion nine hundred ninety-nine quadrillion nine hundred ninety-nine trillion nine hundred ninety-nine billion nine hundred ninety-nine million nine hundred ninety-nine thousand nine hundred ninety-ninth


Nine Novemnonagintillion Nine Hundred Ninety-Nine Octononagintillion Nine Hundred Ninety-Nine Septennonagintillion Nine Hundred Ninety-Nine Sexnonagintillion Nine Hundred Ninety-Nine Quinnonagintillion Nine Hundred Ninety-Nine Quattuornonagintillion Nine Hundred Ninety-Nine Trenonagintillion Nine Hundred Ninety-Nine Duononagintillion Nine Hundred Ninety-Nine Unnonagintillion Nine Hundred Ninety-Nine Nonagintillion Nine Hundred Ninety-Nine Novemoctogintillion Nine Hundred Ninety-Nine Octooctogintillion Nine Hundred Ninety-Nine Septenoctogintillion Nine Hundred Ninety-Nine Sexoctogintillion Nine Hundred Ninety-Nine Quinoctogintillion Nine Hundred Ninety-Nine Quattuoroctogintillion Nine Hundred Ninety-Nine Treoctogintillion Nine Hundred Ninety-Nine Duooctogintillion Nine Hundred Ninety-Nine Unoctogintillion Nine Hundred Ninety-Nine Octogintillion Nine Hundred Ninety-Nine Novemseptuagintillion Nine Hundred Ninety-Nine Octoseptuagintillion Nine Hundred Ninety-Nine Septenseptuagintillion Nine Hundred Ninety-Nine Sexseptuagintillion Nine Hundred Ninety-Nine Quinseptuagintillion Nine Hundred Ninety-Nine Quattuorseptuagintillion Nine Hundred Ninety-Nine Treseptuagintillion Nine Hundred Ninety-Nine Duoseptuagintillion Nine Hundred Ninety-Nine Unseptuagintillion Nine Hundred Ninety-Nine Septuagintillion Nine Hundred Ninety-Nine Novemsexagintillion Nine Hundred Ninety-Nine Octosexagintillion Nine Hundred Ninety-Nine Septensexagintillion Nine Hundred Ninety-Nine Sexsexagintillion Nine Hundred Ninety-Nine Quinsexagintillion Nine Hundred Ninety-Nine Quattuorsexagintillion Nine Hundred Ninety-Nine Tresexagintillion Nine Hundred Ninety-Nine Duosexagintillion Nine Hundred Ninety-Nine Unsexagintillion Nine Hundred Ninety-Nine Sexagintillion Nine Hundred Ninety-Nine Novemquinquagintillion Nine Hundred Ninety-Nine Octoquinquagintillion Nine Hundred Ninety-Nine Septenquinquagintillion Nine Hundred Ninety-Nine Sexquinquagintillion Nine Hundred Ninety-Nine Quinquinquagintillion Nine Hundred Ninety-Nine Quattuorquinquagintillion Nine Hundred Ninety-Nine Trequinquagintillion Nine Hundred Ninety-Nine Duoquinquagintillion Nine Hundred Ninety-Nine Unquinquagintillion Nine Hundred Ninety-Nine Quinquagintillion Nine Hundred Ninety-Nine Novemquadragintillion Nine Hundred Ninety-Nine Octoquadragintillion Nine Hundred Ninety-Nine Septenquadragintillion Nine Hundred Ninety-Nine Sexquadragintillion Nine Hundred Ninety-Nine Quinquadragintillion Nine Hundred Ninety-Nine Quattuorquadragintillion Nine Hundred Ninety-Nine Trequadragintillion Nine Hundred Ninety-Nine Duoquadragintillion Nine Hundred Ninety-Nine Unquadragintillion Nine Hundred Ninety-Nine Quadragintillion Nine Hundred Ninety-Nine Novemtrigintillion Nine Hundred Ninety-Nine Octotrigintillion Nine Hundred Ninety-Nine Septentrigintillion Nine Hundred Ninety-Nine Sextrigintillion Nine Hundred Ninety-Nine Quintrigintillion Nine Hundred Ninety-Nine Quattuortrigintillion Nine Hundred Ninety-Nine Tretrigintillion Nine Hundred Ninety-Nine Duotrigintillion Nine Hundred Ninety-Nine Untrigintillion Nine Hundred Ninety-Nine Trigintillion Nine Hundred Ninety-Nine Novemvigintillion Nine Hundred Ninety-Nine Octovigintillion Nine Hundred Ninety-Nine Septenvigintillion Nine Hundred Ninety-Nine Sexvigintillion Nine Hundred Ninety-Nine Quinvigintillion Nine Hundred Ninety-Nine Quattuorvigintillion Nine Hundred Ninety-Nine Trevigintillion Nine Hundred Ninety-Nine Duovigintillion Nine Hundred Ninety-Nine Unvigintillion Nine Hundred Ninety-Nine Vigintillion Nine Hundred Ninety-Nine Novemdecillion Nine Hundred Ninety-Nine Octodecillion Nine Hundred Ninety-Nine Septendecillion Nine Hundred Ninety-Nine Sexdecillion Nine Hundred Ninety-Nine Quindecillion Nine Hundred Ninety-Nine Quattuordecillion Nine Hundred Ninety-Nine Tredecillion Nine Hundred Ninety-Nine Duodecillion Nine Hundred Ninety-Nine Undecillion Nine Hundred Ninety-Nine Decillion Nine Hundred Ninety-Nine Nonillion Nine Hundred Ninety-Nine Octillion Nine Hundred Ninety-Nine Septillion Nine Hundred Ninety-Nine Sextillion Nine Hundred Ninety-Nine Quintillion Nine Hundred Ninety-Nine Quadrillion Nine Hundred Ninety-Nine Trillion Nine Hundred Ninety-Nine Billion Nine Hundred Ninety-Nine Million Nine Hundred Ninety-Nine Thousand Nine Hundred Ninety-Ninth

Letter case 6 of 8
9 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999th Converted to words in:
camelCase
first letter in lower case,
subsequent words' first letters in uppercase
spaces and punctuation removed:

nineNovemnonagintillionNineHundredNinetyNineOctononagintillionNineHundredNinetyNineSeptennonagintillionNineHundredNinetyNineSexnonagintillionNineHundredNinetyNineQuinnonagintillionNineHundredNinetyNineQuattuornonagintillionNineHundredNinetyNineTrenonagintillionNineHundredNinetyNineDuononagintillionNineHundredNinetyNineUnnonagintillionNineHundredNinetyNineNonagintillionNineHundredNinetyNineNovemoctogintillionNineHundredNinetyNineOctooctogintillionNineHundredNinetyNineSeptenoctogintillionNineHundredNinetyNineSexoctogintillionNineHundredNinetyNineQuinoctogintillionNineHundredNinetyNineQuattuoroctogintillionNineHundredNinetyNineTreoctogintillionNineHundredNinetyNineDuooctogintillionNineHundredNinetyNineUnoctogintillionNineHundredNinetyNineOctogintillionNineHundredNinetyNineNovemseptuagintillionNineHundredNinetyNineOctoseptuagintillionNineHundredNinetyNineSeptenseptuagintillionNineHundredNinetyNineSexseptuagintillionNineHundredNinetyNineQuinseptuagintillionNineHundredNinetyNineQuattuorseptuagintillionNineHundredNinetyNineTreseptuagintillionNineHundredNinetyNineDuoseptuagintillionNineHundredNinetyNineUnseptuagintillionNineHundredNinetyNineSeptuagintillionNineHundredNinetyNineNovemsexagintillionNineHundredNinetyNineOctosexagintillionNineHundredNinetyNineSeptensexagintillionNineHundredNinetyNineSexsexagintillionNineHundredNinetyNineQuinsexagintillionNineHundredNinetyNineQuattuorsexagintillionNineHundredNinetyNineTresexagintillionNineHundredNinetyNineDuosexagintillionNineHundredNinetyNineUnsexagintillionNineHundredNinetyNineSexagintillionNineHundredNinetyNineNovemquinquagintillionNineHundredNinetyNineOctoquinquagintillionNineHundredNinetyNineSeptenquinquagintillionNineHundredNinetyNineSexquinquagintillionNineHundredNinetyNineQuinquinquagintillionNineHundredNinetyNineQuattuorquinquagintillionNineHundredNinetyNineTrequinquagintillionNineHundredNinetyNineDuoquinquagintillionNineHundredNinetyNineUnquinquagintillionNineHundredNinetyNineQuinquagintillionNineHundredNinetyNineNovemquadragintillionNineHundredNinetyNineOctoquadragintillionNineHundredNinetyNineSeptenquadragintillionNineHundredNinetyNineSexquadragintillionNineHundredNinetyNineQuinquadragintillionNineHundredNinetyNineQuattuorquadragintillionNineHundredNinetyNineTrequadragintillionNineHundredNinetyNineDuoquadragintillionNineHundredNinetyNineUnquadragintillionNineHundredNinetyNineQuadragintillionNineHundredNinetyNineNovemtrigintillionNineHundredNinetyNineOctotrigintillionNineHundredNinetyNineSeptentrigintillionNineHundredNinetyNineSextrigintillionNineHundredNinetyNineQuintrigintillionNineHundredNinetyNineQuattuortrigintillionNineHundredNinetyNineTretrigintillionNineHundredNinetyNineDuotrigintillionNineHundredNinetyNineUntrigintillionNineHundredNinetyNineTrigintillionNineHundredNinetyNineNovemvigintillionNineHundredNinetyNineOctovigintillionNineHundredNinetyNineSeptenvigintillionNineHundredNinetyNineSexvigintillionNineHundredNinetyNineQuinvigintillionNineHundredNinetyNineQuattuorvigintillionNineHundredNinetyNineTrevigintillionNineHundredNinetyNineDuovigintillionNineHundredNinetyNineUnvigintillionNineHundredNinetyNineVigintillionNineHundredNinetyNineNovemdecillionNineHundredNinetyNineOctodecillionNineHundredNinetyNineSeptendecillionNineHundredNinetyNineSexdecillionNineHundredNinetyNineQuindecillionNineHundredNinetyNineQuattuordecillionNineHundredNinetyNineTredecillionNineHundredNinetyNineDuodecillionNineHundredNinetyNineUndecillionNineHundredNinetyNineDecillionNineHundredNinetyNineNonillionNineHundredNinetyNineOctillionNineHundredNinetyNineSeptillionNineHundredNinetyNineSextillionNineHundredNinetyNineQuintillionNineHundredNinetyNineQuadrillionNineHundredNinetyNineTrillionNineHundredNinetyNineBillionNineHundredNinetyNineMillionNineHundredNinetyNineThousandNineHundredNinetyNinth


Letter case 7 of 8
9 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999th written out in words in:
hyphen-case
punctuation - removed
spaces - replaced - by - hyphens:

nine-novemnonagintillion-nine-hundred-ninety-nine-octononagintillion-nine-hundred-ninety-nine-septennonagintillion-nine-hundred-ninety-nine-sexnonagintillion-nine-hundred-ninety-nine-quinnonagintillion-nine-hundred-ninety-nine-quattuornonagintillion-nine-hundred-ninety-nine-trenonagintillion-nine-hundred-ninety-nine-duononagintillion-nine-hundred-ninety-nine-unnonagintillion-nine-hundred-ninety-nine-nonagintillion-nine-hundred-ninety-nine-novemoctogintillion-nine-hundred-ninety-nine-octooctogintillion-nine-hundred-ninety-nine-septenoctogintillion-nine-hundred-ninety-nine-sexoctogintillion-nine-hundred-ninety-nine-quinoctogintillion-nine-hundred-ninety-nine-quattuoroctogintillion-nine-hundred-ninety-nine-treoctogintillion-nine-hundred-ninety-nine-duooctogintillion-nine-hundred-ninety-nine-unoctogintillion-nine-hundred-ninety-nine-octogintillion-nine-hundred-ninety-nine-novemseptuagintillion-nine-hundred-ninety-nine-octoseptuagintillion-nine-hundred-ninety-nine-septenseptuagintillion-nine-hundred-ninety-nine-sexseptuagintillion-nine-hundred-ninety-nine-quinseptuagintillion-nine-hundred-ninety-nine-quattuorseptuagintillion-nine-hundred-ninety-nine-treseptuagintillion-nine-hundred-ninety-nine-duoseptuagintillion-nine-hundred-ninety-nine-unseptuagintillion-nine-hundred-ninety-nine-septuagintillion-nine-hundred-ninety-nine-novemsexagintillion-nine-hundred-ninety-nine-octosexagintillion-nine-hundred-ninety-nine-septensexagintillion-nine-hundred-ninety-nine-sexsexagintillion-nine-hundred-ninety-nine-quinsexagintillion-nine-hundred-ninety-nine-quattuorsexagintillion-nine-hundred-ninety-nine-tresexagintillion-nine-hundred-ninety-nine-duosexagintillion-nine-hundred-ninety-nine-unsexagintillion-nine-hundred-ninety-nine-sexagintillion-nine-hundred-ninety-nine-novemquinquagintillion-nine-hundred-ninety-nine-octoquinquagintillion-nine-hundred-ninety-nine-septenquinquagintillion-nine-hundred-ninety-nine-sexquinquagintillion-nine-hundred-ninety-nine-quinquinquagintillion-nine-hundred-ninety-nine-quattuorquinquagintillion-nine-hundred-ninety-nine-trequinquagintillion-nine-hundred-ninety-nine-duoquinquagintillion-nine-hundred-ninety-nine-unquinquagintillion-nine-hundred-ninety-nine-quinquagintillion-nine-hundred-ninety-nine-novemquadragintillion-nine-hundred-ninety-nine-octoquadragintillion-nine-hundred-ninety-nine-septenquadragintillion-nine-hundred-ninety-nine-sexquadragintillion-nine-hundred-ninety-nine-quinquadragintillion-nine-hundred-ninety-nine-quattuorquadragintillion-nine-hundred-ninety-nine-trequadragintillion-nine-hundred-ninety-nine-duoquadragintillion-nine-hundred-ninety-nine-unquadragintillion-nine-hundred-ninety-nine-quadragintillion-nine-hundred-ninety-nine-novemtrigintillion-nine-hundred-ninety-nine-octotrigintillion-nine-hundred-ninety-nine-septentrigintillion-nine-hundred-ninety-nine-sextrigintillion-nine-hundred-ninety-nine-quintrigintillion-nine-hundred-ninety-nine-quattuortrigintillion-nine-hundred-ninety-nine-tretrigintillion-nine-hundred-ninety-nine-duotrigintillion-nine-hundred-ninety-nine-untrigintillion-nine-hundred-ninety-nine-trigintillion-nine-hundred-ninety-nine-novemvigintillion-nine-hundred-ninety-nine-octovigintillion-nine-hundred-ninety-nine-septenvigintillion-nine-hundred-ninety-nine-sexvigintillion-nine-hundred-ninety-nine-quinvigintillion-nine-hundred-ninety-nine-quattuorvigintillion-nine-hundred-ninety-nine-trevigintillion-nine-hundred-ninety-nine-duovigintillion-nine-hundred-ninety-nine-unvigintillion-nine-hundred-ninety-nine-vigintillion-nine-hundred-ninety-nine-novemdecillion-nine-hundred-ninety-nine-octodecillion-nine-hundred-ninety-nine-septendecillion-nine-hundred-ninety-nine-sexdecillion-nine-hundred-ninety-nine-quindecillion-nine-hundred-ninety-nine-quattuordecillion-nine-hundred-ninety-nine-tredecillion-nine-hundred-ninety-nine-duodecillion-nine-hundred-ninety-nine-undecillion-nine-hundred-ninety-nine-decillion-nine-hundred-ninety-nine-nonillion-nine-hundred-ninety-nine-octillion-nine-hundred-ninety-nine-septillion-nine-hundred-ninety-nine-sextillion-nine-hundred-ninety-nine-quintillion-nine-hundred-ninety-nine-quadrillion-nine-hundred-ninety-nine-trillion-nine-hundred-ninety-nine-billion-nine-hundred-ninety-nine-million-nine-hundred-ninety-nine-thousand-nine-hundred-ninety-ninth

Letter case 8 of 8
9 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999th SPELLED OUT IN:
snake_case
punctuation _ removed
spaces _ replaced _ by _ underscores:

nine_novemnonagintillion_nine_hundred_ninety_nine_octononagintillion_nine_hundred_ninety_nine_septennonagintillion_nine_hundred_ninety_nine_sexnonagintillion_nine_hundred_ninety_nine_quinnonagintillion_nine_hundred_ninety_nine_quattuornonagintillion_nine_hundred_ninety_nine_trenonagintillion_nine_hundred_ninety_nine_duononagintillion_nine_hundred_ninety_nine_unnonagintillion_nine_hundred_ninety_nine_nonagintillion_nine_hundred_ninety_nine_novemoctogintillion_nine_hundred_ninety_nine_octooctogintillion_nine_hundred_ninety_nine_septenoctogintillion_nine_hundred_ninety_nine_sexoctogintillion_nine_hundred_ninety_nine_quinoctogintillion_nine_hundred_ninety_nine_quattuoroctogintillion_nine_hundred_ninety_nine_treoctogintillion_nine_hundred_ninety_nine_duooctogintillion_nine_hundred_ninety_nine_unoctogintillion_nine_hundred_ninety_nine_octogintillion_nine_hundred_ninety_nine_novemseptuagintillion_nine_hundred_ninety_nine_octoseptuagintillion_nine_hundred_ninety_nine_septenseptuagintillion_nine_hundred_ninety_nine_sexseptuagintillion_nine_hundred_ninety_nine_quinseptuagintillion_nine_hundred_ninety_nine_quattuorseptuagintillion_nine_hundred_ninety_nine_treseptuagintillion_nine_hundred_ninety_nine_duoseptuagintillion_nine_hundred_ninety_nine_unseptuagintillion_nine_hundred_ninety_nine_septuagintillion_nine_hundred_ninety_nine_novemsexagintillion_nine_hundred_ninety_nine_octosexagintillion_nine_hundred_ninety_nine_septensexagintillion_nine_hundred_ninety_nine_sexsexagintillion_nine_hundred_ninety_nine_quinsexagintillion_nine_hundred_ninety_nine_quattuorsexagintillion_nine_hundred_ninety_nine_tresexagintillion_nine_hundred_ninety_nine_duosexagintillion_nine_hundred_ninety_nine_unsexagintillion_nine_hundred_ninety_nine_sexagintillion_nine_hundred_ninety_nine_novemquinquagintillion_nine_hundred_ninety_nine_octoquinquagintillion_nine_hundred_ninety_nine_septenquinquagintillion_nine_hundred_ninety_nine_sexquinquagintillion_nine_hundred_ninety_nine_quinquinquagintillion_nine_hundred_ninety_nine_quattuorquinquagintillion_nine_hundred_ninety_nine_trequinquagintillion_nine_hundred_ninety_nine_duoquinquagintillion_nine_hundred_ninety_nine_unquinquagintillion_nine_hundred_ninety_nine_quinquagintillion_nine_hundred_ninety_nine_novemquadragintillion_nine_hundred_ninety_nine_octoquadragintillion_nine_hundred_ninety_nine_septenquadragintillion_nine_hundred_ninety_nine_sexquadragintillion_nine_hundred_ninety_nine_quinquadragintillion_nine_hundred_ninety_nine_quattuorquadragintillion_nine_hundred_ninety_nine_trequadragintillion_nine_hundred_ninety_nine_duoquadragintillion_nine_hundred_ninety_nine_unquadragintillion_nine_hundred_ninety_nine_quadragintillion_nine_hundred_ninety_nine_novemtrigintillion_nine_hundred_ninety_nine_octotrigintillion_nine_hundred_ninety_nine_septentrigintillion_nine_hundred_ninety_nine_sextrigintillion_nine_hundred_ninety_nine_quintrigintillion_nine_hundred_ninety_nine_quattuortrigintillion_nine_hundred_ninety_nine_tretrigintillion_nine_hundred_ninety_nine_duotrigintillion_nine_hundred_ninety_nine_untrigintillion_nine_hundred_ninety_nine_trigintillion_nine_hundred_ninety_nine_novemvigintillion_nine_hundred_ninety_nine_octovigintillion_nine_hundred_ninety_nine_septenvigintillion_nine_hundred_ninety_nine_sexvigintillion_nine_hundred_ninety_nine_quinvigintillion_nine_hundred_ninety_nine_quattuorvigintillion_nine_hundred_ninety_nine_trevigintillion_nine_hundred_ninety_nine_duovigintillion_nine_hundred_ninety_nine_unvigintillion_nine_hundred_ninety_nine_vigintillion_nine_hundred_ninety_nine_novemdecillion_nine_hundred_ninety_nine_octodecillion_nine_hundred_ninety_nine_septendecillion_nine_hundred_ninety_nine_sexdecillion_nine_hundred_ninety_nine_quindecillion_nine_hundred_ninety_nine_quattuordecillion_nine_hundred_ninety_nine_tredecillion_nine_hundred_ninety_nine_duodecillion_nine_hundred_ninety_nine_undecillion_nine_hundred_ninety_nine_decillion_nine_hundred_ninety_nine_nonillion_nine_hundred_ninety_nine_octillion_nine_hundred_ninety_nine_septillion_nine_hundred_ninety_nine_sextillion_nine_hundred_ninety_nine_quintillion_nine_hundred_ninety_nine_quadrillion_nine_hundred_ninety_nine_trillion_nine_hundred_ninety_nine_billion_nine_hundred_ninety_nine_million_nine_hundred_ninety_nine_thousand_nine_hundred_ninety_ninth



Notes on the Letter Cases used to write out in words the number above:

  • 1: Lowercase: only lowercase letters are used. Example: 'seventy-six and two tenths'.
  • 2: Uppercase: only uppercase letters are used. Example: 'SEVENTY-SIX AND TWO TENTHS'.
  • 3. Title Case: the first letters of the words are capitalized, except for certain short words, such as articles, conjunctions and short prepositions, 'a', 'an', 'the', 'and', 'but', 'for', 'at', 'by', 'to', 'or', 'in', etc. Example: 'Seventy-Six and Two Tenths'.
  • 4. Sentence case: only the first letter of the first word at the beginning of the sentence is capitalized. Example: 'Seventy-six and two tenths'.
  • 5. Start Case: the first letter of each word is capitalized without any exception. Example: 'Seventy-Six And Two Tenths'.
  • 6. Camel Case: text has no spaces nor punctuation and the first letter of each word is capitalized except for the very first letter in the series. Example: 'seventySixAndTwoTenths'.
  • 7. Hyphen Case: text has no spaces nor punctuation and the words are delimited by hyphen. Example: 'seventy-six-and-two-tenths'. Hyphen Case can be lowercase or uppercase.
  • 8. Snake Case: text has no spaces nor punctuation and the words are delimited by underscore. Example: 'seventy_six_and_two_tenths'. Snake Case can be lowercase or uppercase.

General Notes on Writing Out Numbers:

  • 1: It's correct to hyphenate all compound numbers from twenty-one (21) through ninety-nine (99). The hyphen is the minus sign, as in 'thirty-four' (34).
  • 2: In American English, unlike British English, when writing out natural numbers of three or more digits, the word 'and' is not used after 'hundred' or 'thousand': so it is 'one thousand two hundred thirty-four' and not 'one thousand two hundred and thirty-four'.
  • 3. Use commas when writing in digits numbers above 999: 1,234; 43,290, 1,000,000 etc.


How to convert ordinal numerals to words in (US) American English, how to write them out using letters instead of numerals

How to write out ordinal numbers (those denoting order) in words?

Most ordinal numbers end in "th", so just add "th" to the end of the cardinal number (those denoting quantity, ex: 1 one, 2 two, 3 three, 4 four, ... etc.):

  • cardinal: 4 = four → ordinal: 4th = fourth
  • cardinal: 7 = seven → ordinal: 7th = seventh
  • cardinal: 10 = ten → ordinal: 10th = tenth
  • cardinal: 19 = nineteen → ordinal: 19th = nineteenth
  • cardinal: 100 = one hundred → ordinal: 100th = (one) hundredth
  • cardinal: 1,000 = one thousand → ordinal: 1,000th = (one) thousandth

Exceptions:

  • cardinal: 1 = one → ordinal: first = 1st
  • cardinal: 2 = two → ordinal: second = 2nd
  • cardinal: 3 = three → ordinal: third = 3rd
  • cardinal: 5 = five → ordinal: fifth = 5th
  • cardinal: 8 = eight → ordinal: eighth = 8th
  • cardinal: 9 = nine → ordinal: ninth = 9th
  • cardinal: 12 = twelve → ordinal: twelfth = 12th
  • cardinal: 20 = twenty → ordinal: twentieth = 20th
  • cardinal: 30 = thirty → ordinal: thirtieth = 30th
  • cardinal: 40 = forty → ordinal: fortieth = 40th
  • cardinal: 50 = fifty → ordinal: fiftieth = 50th
  • cardinal: 60 = sixty → ordinal: sixtieth = 60th
  • cardinal: 70 = seventy → ordinal: seventieth = 70th
  • cardinal: 80 = eighty → ordinal: eightieth = 80th
  • cardinal: 90 = ninety → ordinal: ninetieth = 90th

Here there are a couple of the main ordinal numbers, from 1st up to 19th, you can find a longer list in the full article:

  • cardinal: 1 = one; → ordinal: 1st = first;
  • cardinal: 2 = two; → ordinal: 2nd, second;
  • cardinal: 3 = three; → ordinal: 3rd, third;
  • cardinal: 4 = four; → ordinal: 4th, fourth;
  • cardinal: 5 = five; → ordinal: 5th, fifth;
  • cardinal: 6 = six; → ordinal: 6th, sixth;
  • cardinal: 7 = seven; → ordinal: 7th, seventh;
  • cardinal: 8 = eight; → ordinal: 8th, eighth;
  • cardinal: 9 = nine; → ordinal: 9th, ninth;
  • cardinal: 10 = ten; → ordinal: 10th, tenth;
  • cardinal: 11 = eleven; → ordinal: 11th, eleventh;
  • cardinal: 12 = twelve; → ordinal: 12th, twelfth;
  • cardinal: 13 = thirteen; → ordinal: thirteenth;
  • cardinal: 14 = fourteen; → ordinal: 14th, fourteenth;
  • cardinal: 15 = fifteen; → ordinal: 15th, fifteenth;
  • cardinal: 16 = sixteen; → ordinal: 16th, sixteenth;
  • cardinal: 17 = seventeen; → ordinal: 17th, seventeenth;
  • cardinal: 18 = eighteen; → ordinal: 18th, eighteenth;
  • cardinal: 19 = nineteen; → ordinal: 19th, nineteenth;

» Full article: how to write out ordinal numbers in words in (US) American English, using letters instead of numerals