Ordinal Number 6 798 346 797 235 478 924 346 798 043 785 243 789 057 984 230 759 823 478 905 078 942 354 235 578 965 349 078 678 594 653 467 598 042 738 905 078 942 352 345 854 378 906 504 345 876 900 345 789 607 895 349 678 053 490 786 534 683 745 996 785 433 333 333 333 333 333 333 333 333 333 333 333 333 654 444 444 444 444 444 444 444 444 444 444 555 555 555 555 555 555 555 555 546th, That Indicates Position or Order, Converted to Words in (US) American English, Written Out

Convert the ordinal number 6 798 346 797 235 478 924 346 798 043 785 243 789 057 984 230 759 823 478 905 078 942 354 235 578 965 349 078 678 594 653 467 598 042 738 905 078 942 352 345 854 378 906 504 345 876 900 345 789 607 895 349 678 053 490 786 534 683 745 996 785 433 333 333 333 333 333 333 333 333 333 333 333 333 654 444 444 444 444 444 444 444 444 444 444 555 555 555 555 555 555 555 555 546th to (US) American English words.

The ordinal number indicates the position or order of things or objects.


lowercase:

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

UPPERCASE:

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

Title Case:

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

Sentence case:

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

6 798 346 797 235 478 924 346 798 043 785 243 789 057 984 230 759 823 478 905 078 942 354 235 578 965 349 078 678 594 653 467 598 042 738 905 078 942 352 345 854 378 906 504 345 876 900 345 789 607 895 349 678 053 490 786 534 683 745 996 785 433 333 333 333 333 333 333 333 333 333 333 333 333 654 444 444 444 444 444 444 444 444 444 444 555 555 555 555 555 555 555 555 545 = ? ... 1 = ?

Converter: Write Out Ordinal Numbers in Words in (US) American English

The ordinal numbers are converted to words in (US) American English in:

- lowercase (all small caps letters);

- UPPERCASE (ALL CAPITAL LETTERS);

- Title Case (Capital Letters at the Beginning of Words);

- And sentence case (capital letter to start the sentence).

Latest ordinal numbers converted to words in US American English

convert ordinal number 6 798 346 797 235 478 924 346 798 043 785 243 789 057 984 230 759 823 478 905 078 942 354 235 578 965 349 078 678 594 653 467 598 042 738 905 078 942 352 345 854 378 906 504 345 876 900 345 789 607 895 349 678 053 490 786 534 683 745 996 785 433 333 333 333 333 333 333 333 333 333 333 333 333 654 444 444 444 444 444 444 444 444 444 444 555 555 555 555 555 555 555 555 546 to (US) American English words Aug 12 23:03 UTC (GMT)
convert ordinal number 140,140,140,140,140,143 to (US) American English words Aug 12 23:03 UTC (GMT)
convert ordinal number 60,049 to (US) American English words Aug 12 23:03 UTC (GMT)
convert ordinal number 5,806 to (US) American English words Aug 12 23:02 UTC (GMT)
convert ordinal number 233 to (US) American English words Aug 12 23:02 UTC (GMT)
convert ordinal number 15 000 166 566 565 656 664 949 959 959 595 995 959 595 965 646 464 664 646 466 456 565 656 665 656 666 565 656 656 565 653 535 333 386 868 686 686 464 664 646 465 665 656 656 567 656 565 656 569 895 989 959 598 998 989 959 565 646 646 565 656 566 565 656 889 898 644 664 464 665 646 466 467 664 646 463 434 346 566 565 to (US) American English words Aug 12 23:02 UTC (GMT)
convert ordinal number 19,322 to (US) American English words Aug 12 23:02 UTC (GMT)
convert ordinal number 679 834 679 854 378 906 504 345 876 900 668 686 345 789 607 895 349 678 053 490 786 534 683 745 996 785 433 333 333 333 333 333 333 333 333 333 333 333 333 654 444 444 444 444 444 444 444 444 444 444 555 555 555 555 555 555 555 555 524 to (US) American English words Aug 12 23:01 UTC (GMT)
convert ordinal number 999,999,999,999,999,999,999,999,996 to (US) American English words Aug 12 23:01 UTC (GMT)
convert ordinal number 5,318 to (US) American English words Aug 12 23:01 UTC (GMT)
convert ordinal number 664,664,664,664 to (US) American English words Aug 12 23:00 UTC (GMT)
convert ordinal number 56,524 to (US) American English words Aug 12 22:59 UTC (GMT)
convert ordinal number 12,992 to (US) American English words Aug 12 22:59 UTC (GMT)
All users converted ordinal numbers

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

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

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