Numbers Converter to Words Form in (US) American English. How To Write Out Natural (Cardinal) Numbers, Integers and Decimals, Spell Them Out in Eight Different Letter Cases, Lowercase, Uppercase and Title Case Included

Converter: Write Integer & Decimal Numbers in Words, US American English

Entered numbers are written out (converted, spelled out) in words in (US) American English in: (1) lowercase (2) UPPERCASE (3) Title Case (4) Sentence case (5) Start Case (6) camelCase (7) Hyphen-Case (8) Snake_Case.

The last 10 numbers written out in words (converted to, spelled out in words, with letters), in (US) American English

How to: Convert and Write out number 110,063.58 in words form, (US) American English (text spelled out with letters) Feb 26 04:59 UTC (GMT)
How to: Convert and Write out number 53.9633 in words form, (US) American English (text spelled out with letters) Feb 26 04:59 UTC (GMT)
How to: Convert and Write out number 2,681,472 in words form, (US) American English (text spelled out with letters) Feb 26 04:59 UTC (GMT)
How to: Convert and Write out number 4,510,182 in words form, (US) American English (text spelled out with letters) Feb 26 04:59 UTC (GMT)
How to: Convert and Write out number 2,186,770 in words form, (US) American English (text spelled out with letters) Feb 26 04:59 UTC (GMT)
How to: Convert and Write out number 9,120,119,982 in words form, (US) American English (text spelled out with letters) Feb 26 04:59 UTC (GMT)
How to: Convert and Write out number 5 000 000 000 000 000 000 in words form, (US) American English (text spelled out with letters) Feb 26 04:59 UTC (GMT)
How to: Convert and Write out number - 0.002 551 in words form, (US) American English (text spelled out with letters) Feb 26 04:59 UTC (GMT)
How to: Convert and Write out number 6,389,978 in words form, (US) American English (text spelled out with letters) Feb 26 04:59 UTC (GMT)
How to: Convert and Write out number 28,722 in words form, (US) American English (text spelled out with letters) Feb 26 04:59 UTC (GMT)
All the numbers that were written out in words (spelled out in words, with letters), in (US) American English

How to write out numbers in words in (US) American English

1. How to convert natural numbers (positive integers) to (US) American English words, how to write them out (spell them out)?

1.1. To know how to write a number in words we must know the place value of each digit.

  • For example, the number 12,345 has a 1 in the ten thousands place, a 2 in the thousands place, a 3 in the hundreds place, a 4 in the tens place and a 5 in the ones place.
  • 12,345 in words =
  • = one ten thousands (10,000) + two thousands (2,000) + three hundreds (300) + four tens (40) + five ones
  • = ten thousands (10,000) + two thousands (2,000) + three hundreds (300) + four tens (40) + five ones
  • = ten thousand + two thousand + three hundred + forty + five
  • = (ten + two) thousand + three hundred + forty-five
  • = twelve thousand + three hundred + forty-five
  • = just remove the plus sign, +, and get the number written out in words
  • = twelve thousand three hundred forty-five.

1.2. Notes:

  • 1: Note the hyphen (or the minus sign) in "thirty-four" above. Technically, it's correct to hyphenate all compound numbers from twenty-one (21) through ninety-nine (99).
  • 2: In American 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 hundred twenty-three" and not "one hundred and twenty-three", though you may hear a lot of people using the last, informally.
    In British English, the word "and" is used after "hundred" or "thousand" in numbers of three or more digits.
  • 3. Do not use commas when writing out numbers above 999: so it is "one thousand two hundred thirty-four" and not "one thousand, two hundred thirty-four".
  • 4. For clarity, use commas when writing figures of four or more digits: 1,234, 43,290,120, etc. In other countries a point is used to group digits by 3 and a comma to separate the decimals, ex: 1.234,55, 43.290.120,84. In some other countries a space is used to group digits by 3, ex: 1 234, 43 290 120.

2. When to write out numbers in words?

  • Spell out all numbers beginning a sentence, "Forty years ago,..." Not "40 years ago,...".
  • The Chicago Manual of Style calls for the numbers zero through one hundred to be written out - this would include forms like "one hundred million".
  • Using words to write short numbers makes your writing look clean and classy. In handwriting, words are easy to read and hard to mistake for each other. Writing longer numbers as words isn't as useful, but it's good practice while you're learning.
  • Otherwise, clarity should matter, for example when two numbers are used in a row allways spell one out: "They needed five 2-foot copper pipes to finish the job. There were 15 six-foot tall men on the basketball team roster.".
  • Be consistent within a sentence, phrase... Do not write "... one million people..." and "... 1,000,000 cars..."; stick to one or another, not both.

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