Tool to write a number in letters, it allows to check the amount or the value written, it is a common writing in contracts or checks.

Number in Letters - dCode

Tag(s) : Numeral System

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To write a digit or a **number in letters** in English, numbers have to be written following some easy rules (with few exceptions, see below).

__Example:__ 123 is written one hundred (and) twenty-three (the word and can be omitted)

dCode applies million, billion, trillion, etc. for big numbers names up to 10^63.

Words hundred, thousand, etc. are indeclinable (no plural form). There is an uninflected plural of numerals based on old English and today they did not change form.

__Example:__ 1000 : one thousand

2000 : two thousand (no final s)

__Example:__ 3000000 : three millions

4003002001 : four billion three million two thousand (and) one

By convention, numbers in literary or legal texts are represented in letters, while numbers in scientific texts are generally written in numbers.

It is mandatory to write/transcribe the **numbers in letters** on the checks.

Digits from 0 to 9 are written :

0 | zero |

1 | one |

2 | two |

3 | three |

4 | four |

5 | five |

6 | six |

7 | seven |

8 | eight |

9 | nine |

Numbers from 10 to 20 are written :

10 | ten |

11 | eleven |

12 | twelve |

13 | thirteen |

14 | fourteen |

15 | fifteen |

16 | sixteen |

17 | seventeen |

18 | eighteen |

19 | nineteen |

20 | twenty |

30 | thirty |

40 | forty |

50 | fifty |

60 | sixty |

70 | seventy |

80 | eighty |

90 | ninety |

100 | one hundred |

1000 | one thousand |

1000000 | one million |

1000000000 | one billion |

Hyphens are used for composed numbers inferior to 100.

__Example:__ 21 : twenty-one

22 : twenty-two

88 : eighty-eight

200 : two hundred

The use of hyphens can be tolerated with other numbers (ie. superior to 100). It has the advantages to delimitate the number in a sentence.

__Example:__ One hundred and one half for 100 + 1/2

__Example:__ One-hundred-and-one half for 101 * 1/2

There are 10 digits: 0,1,2,3,4,5,6,7,8,9 that allows writing all the numbers. Numbers are composed from 1 to n digits.

__Example:__ In the number 248, there are three digits that are 2, 4 and 8.

dCode retains ownership of the online 'Number in Letters' tool source code. Except explicit open source licence (indicated CC / Creative Commons / free), any 'Number in Letters' algorithm, applet or snippet (converter, solver, encryption / decryption, encoding / decoding, ciphering / deciphering, translator), or any 'Number in Letters' function (calculate, convert, solve, decrypt / encrypt, decipher / cipher, decode / encode, translate) written in any informatic language (Python, Java, PHP, C#, Javascript, Matlab, etc.) and no data download, script, copy-paste, or API access for 'Number in Letters' will be for free, same for offline use on PC, tablet, iPhone or Android ! dCode is free and online.

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Source : https://www.dcode.fr/writing-number-letters

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