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Converting numbers to words is required for writing cheques, legal documents, and financial reports. The English word system groups numbers into thousands, millions, billions, and trillions.
公式
Convert integer n to words following English naming conventions: ones, tens, hundreds, thousands, millions, etc.
- n
- Number (integer)
- word
- Written Form (English text)
ステップバイステップガイド
- 1Numbers 1–19 have unique words; 20–99 combine tens and ones
- 2Hundreds: "[digit] hundred [remainder]"
- 3Thousands: "[amount] thousand [remainder]"
- 4Millions, billions follow the same pattern
解いた例
入力
1,234,567
結果
One million, two hundred thirty-four thousand, five hundred sixty-seven
入力
2024
結果
Two thousand twenty-four
よくある質問
How are compound numbers written?
Numbers 21–99 are hyphenated: twenty-one, ninety-nine. Hundreds are separate words: one hundred fifty-six.
What about large numbers?
Use commas: 1,234,567 is "one million, two hundred thirty-four thousand, five hundred sixty-seven."
Are there different conventions?
British and American English differ slightly (e.g., "and" placement). Always check regional style guides for formal writing.
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