Number to Words Converter
Spell out any number as words in English or Sino-Korean with 만/억/조 grouping, or as currency, an ordinal, or the formal cheque-writing form.
one thousand two hundred thirty-four
What this number-to-words tool does
Type any number — whole or with a decimal point — and this tool instantly spells it out in words: for example, 1234 becomes "one thousand two hundred thirty-four". Use it whenever you need the written form of an amount: filling in a cheque, drafting a contract or invoice, reading a figure aloud, or double-checking that a large number really says what you think it says. The converter follows standard American English grouping (thousand, million, billion, trillion and up), handles zero and negative numbers, and never inserts the word "and" inside a whole number.
English and Korean readings
The tool follows the language you are currently browsing in. In English you get the everyday spelled-out form. In Korean you get the Sino-Korean reading with the correct 만 / 억 / 조 grouping — so 1234 reads 천이백삼십사 and 10000 reads 만. A Format selector switches the output between a plain number, a currency amount (dollars and cents unless you pick another in the Currency select, which also spells euros, pounds, yen, won, yuan and rupees — yen as whole yen), an ordinal (twenty-first, one hundredth, or the 제-prefixed Korean reading), and a check amount — the formal line written on a cheque or receipt, which is one thousand two hundred thirty-four and 56/100 in English and 일금 천이백삼십사원정 in Korean, where anything under a won is dropped because the 원정 form takes whole won only. Because everything runs as JavaScript in your own browser, conversion is instant and works offline once the page has loaded.
Frequently asked questions
How large a number can it convert, and does it read decimals?
The number is read as its digits rather than as a JavaScript number, so it goes well past the 9,007,199,254,740,991 JavaScript holds exactly, as far as the scale words reach; past that the page shows a warning instead of an imprecise result. The digits after a decimal point are read out after the word “point”.
Can it write ordinals like "twenty-first"?
Yes. Switch the Format selector to Ordinal and 21 becomes "twenty-first", 100 becomes "one hundredth", and 1234 becomes "one thousand two hundred thirty-fourth". In Korean the ordinal is the Sino-Korean reading prefixed with 제, so 1 becomes 제일.
Does it work with negative numbers and zero?
Yes. Zero is spelled "zero" (or 영 in Korean), and a negative number is prefixed with "negative" (or 마이너스 in Korean), for example -5 becomes "negative five".
Can I spell an amount in a currency other than dollars?
Yes. With Format on "Currency amount", a Currency select offers US dollars, euros, pounds, yen, won, yuan and rupees on either page, so the English page can write …won and fifty-six jeon and the Korean one …달러 오십육 센트. It starts on the page’s own currency, yen is spelled as whole yen, and the choice is kept in the link.