Convert a number to a word representation.
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> Convert a number to a word representation.
``bash`
npm install @stdlib/string-num2words
`javascript`
var num2words = require( '@stdlib/string-num2words' );
#### num2words( value\[, options] )
Converts a number to a word representation.
`javascript
var out = num2words( 87 );
// returns 'eighty-seven'
out = num2words( 23101 );
// returns 'twenty-three thousand one hundred one'
out = num2words( 0.53 );
// returns 'zero point five three'
`
The function accepts the following options:
- lang: string indicating the language. Default: 'en'.
By default, the function returns a word representation of a number in English. To return a word representation of a number in a different language, set the lang option.
`javascript
var out = num2words( 22, {
'lang': 'de'
});
// returns 'zweiundzwanzig'
out = num2words( 0.53, {
'lang': 'de'
});
// returns 'null Komma fünf drei'
`
- The following languages are supported:
- en: English.
- de: German.
`javascript
var num2words = require( '@stdlib/string-num2words' );
var out = num2words( 29 );
// returns 'twenty-nine'
out = num2words( 113 );
// returns 'one hundred thirteen'
out = num2words( 13.52 );
// returns 'thirteen point five two'
out = num2words( 47, {
'lang': 'de'
});
// returns 'siebenundvierzig'
`
- [@stdlib/string-num2words-cli][@stdlib/string-num2words-cli]: CLI package for use as a command-line utility.
*
This package is part of [stdlib][stdlib], a standard library for JavaScript and Node.js, with an emphasis on numerical and scientific computing. The library provides a collection of robust, high performance libraries for mathematics, statistics, streams, utilities, and more.
For more information on the project, filing bug reports and feature requests, and guidance on how to develop [stdlib][stdlib], see the main project [repository][stdlib].
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---
See [LICENSE][stdlib-license].
Copyright © 2016-2026. The Stdlib [Authors][stdlib-authors].
[@stdlib/string-num2words-cli]: https://www.npmjs.com/package/@stdlib/string-num2words-cli
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[test-image]: https://github.com/stdlib-js/string-num2words/actions/workflows/test.yml/badge.svg?branch=v0.2.3
[test-url]: https://github.com/stdlib-js/string-num2words/actions/workflows/test.yml?query=branch:v0.2.3
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[coverage-url]: https://codecov.io/github/stdlib-js/string-num2words?branch=main
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[stdlib]: https://github.com/stdlib-js/stdlib
[stdlib-authors]: https://github.com/stdlib-js/stdlib/graphs/contributors
[cli-section]: https://github.com/stdlib-js/string-num2words#cli
[cli-url]: https://github.com/stdlib-js/string-num2words/tree/cli
[@stdlib/string-num2words]: https://github.com/stdlib-js/string-num2words/tree/main
[umd]: https://github.com/umdjs/umd
[es-module]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Modules
[deno-url]: https://github.com/stdlib-js/string-num2words/tree/deno
[deno-readme]: https://github.com/stdlib-js/string-num2words/blob/deno/README.md
[umd-url]: https://github.com/stdlib-js/string-num2words/tree/umd
[umd-readme]: https://github.com/stdlib-js/string-num2words/blob/umd/README.md
[esm-url]: https://github.com/stdlib-js/string-num2words/tree/esm
[esm-readme]: https://github.com/stdlib-js/string-num2words/blob/esm/README.md
[branches-url]: https://github.com/stdlib-js/string-num2words/blob/main/branches.md
[stdlib-license]: https://raw.githubusercontent.com/stdlib-js/string-num2words/main/LICENSE
[standard-streams]: https://en.wikipedia.org/wiki/Standard_streams
[mdn-regexp]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Regular_Expressions