Spell the ordinal number 15 000 166 566 565 656 656 532 225 556 565 656 565 665 656 565 665 656 531 313 133 131 323 232 332 323 235 686 565 656 565 353 535 335 353 535 365 656 665 656 666 565 656 656 565 653 535 333 386 868 686 686 464 664 646 465 665 656 656 567 656 565 656 569 895 989 959 598 998 989 959 565 646 646 565 656 566 565 656 889 898 644 664 464 665 646 466 467 664 646 463 434 346 566 548th: converted to US American English words, how to write it out

Convert 15 000 166 566 565 656 656 532 225 556 565 656 565 665 656 565 665 656 531 313 133 131 323 232 332 323 235 686 565 656 565 353 535 335 353 535 365 656 665 656 666 565 656 656 565 653 535 333 386 868 686 686 464 664 646 465 665 656 656 567 656 565 656 569 895 989 959 598 998 989 959 565 646 646 565 656 566 565 656 889 898 644 664 464 665 646 466 467 664 646 463 434 346 566 548th to (US) American English words:

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

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

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

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

15 000 166 566 565 656 656 532 225 556 565 656 565 665 656 565 665 656 531 313 133 131 323 232 332 323 235 686 565 656 565 353 535 335 353 535 365 656 665 656 666 565 656 656 565 653 535 333 386 868 686 686 464 664 646 465 665 656 656 567 656 565 656 569 895 989 959 598 998 989 959 565 646 646 565 656 566 565 656 889 898 644 664 464 665 646 466 467 664 646 463 434 346 566 547 = ? ... 1 = ?

Converter: spell ordinal numerals to English words

The ordinal numbers are converted to English words / text in:

- lowercase (all small caps letters);

- UPPERCASE (ALL CAPITAL LETTERS);

- Title Case (Capital Letters to Start the Words);

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

Latest ordinal numbers converted to US American English words

convert ordinal number 15 000 166 566 565 656 656 532 225 556 565 656 565 665 656 565 665 656 531 313 133 131 323 232 332 323 235 686 565 656 565 353 535 335 353 535 365 656 665 656 666 565 656 656 565 653 535 333 386 868 686 686 464 664 646 465 665 656 656 567 656 565 656 569 895 989 959 598 998 989 959 565 646 646 565 656 566 565 656 889 898 644 664 464 665 646 466 467 664 646 463 434 346 566 548 to (US) American English words Apr 23 02:01 UTC (GMT)
convert ordinal number 9,789 to (US) American English words Apr 23 02:00 UTC (GMT)
convert ordinal number 50,270 to (US) American English words Apr 23 02:00 UTC (GMT)
convert ordinal number 664,664,664,655 to (US) American English words Apr 23 01:58 UTC (GMT)
convert ordinal number 207,444 to (US) American English words Apr 23 01:58 UTC (GMT)
convert ordinal number 8,941 to (US) American English words Apr 23 01:57 UTC (GMT)
convert ordinal number 78 905 678 548 796 666 666 354 783 999 998 792 058 794 327 958 493 278 888 888 888 843 333 333 333 333 333 333 333 333 333 334 356 783 549 763 456 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 993 523 to (US) American English words Apr 23 01:57 UTC (GMT)
convert ordinal number 9,757 to (US) American English words Apr 23 01:57 UTC (GMT)
convert ordinal number 6,525 to (US) American English words Apr 23 01:57 UTC (GMT)
convert ordinal number 10,003,000,015 to (US) American English words Apr 23 01:57 UTC (GMT)
convert ordinal number 2,685 to (US) American English words Apr 23 01:57 UTC (GMT)
convert ordinal number 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 990 to (US) American English words Apr 23 01:56 UTC (GMT)
convert ordinal number 555 999 999 999 999 999 999 999 999 999 999 986 395 687 053 486 795 348 796 573 489 687 777 777 777 777 243 754 728 577 999 999 999 999 999 999 999 999 999 999 599 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 995 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 999 883 546 975 786 905 347 967 953 469 785 349 765 937 486 987 534 689 753 478 965 325 to (US) American English words Apr 23 01:55 UTC (GMT)
All users converted ordinal numbers

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

How to write ordinal numbers (those denoting order) down 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 ordinal numbers out in (US) American English words, 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 ordinal numbers out in (US) American English words, using letters instead of numerals