---
title: "640 in words"
description: "640 in words is \"six hundred forty\". Ordinal form, the British spelling, how to write it on a cheque, and where each word comes from."
url: https://atoneplace.net/number-to-words/640/
site: "At One Place"
---

# 640 in words

**640 in words: Six hundred forty**

640 is written "six hundred forty". British English inserts "and" before the final part, giving "six hundred and forty"; American English leaves it out.

## Where each word comes from

*600 + 40 = 640*

| Digit | Place | Worth | Spoken as |
| --- | --- | --- | --- |
| 6 | hundreds | 600 | six hundred |
| 4 | tens | 40 | forty |

## The same number, other ways

- **In words (US):** Six hundred forty
- **In words (UK):** Six hundred and forty
- **Ordinal:** 640th — six hundred fortieth
- **Roman numeral:** DCXL
- **Digits:** 640

## Writing it on a cheque

On a cheque the amount line reads "Six hundred and forty and 00/100" — or "Six hundred and forty only" in Indian and much of Commonwealth practice. The fraction or the word "only" exists to stop anyone appending digits after what you wrote. Draw a line through any space left over for the same reason.

## Common questions

### How do you write 640 in words?

Six hundred forty. In British English, "six hundred and forty".

### What is the ordinal of 640?

Six hundred fortieth, written 640th.

## Related pages

- [640 in Roman numerals](https://atoneplace.net/roman-numerals/640/)
- [637 in words](https://atoneplace.net/number-to-words/637/)
- [638 in words](https://atoneplace.net/number-to-words/638/)
- [639 in words](https://atoneplace.net/number-to-words/639/)
- [641 in words](https://atoneplace.net/number-to-words/641/)
- [0 in words](https://atoneplace.net/number-to-words/0/)
- [8 in words](https://atoneplace.net/number-to-words/8/)
- [11 in words](https://atoneplace.net/number-to-words/11/)
- [12 in words](https://atoneplace.net/number-to-words/12/)
- [13 in words](https://atoneplace.net/number-to-words/13/)
- [15 in words](https://atoneplace.net/number-to-words/15/)
- [19 in words](https://atoneplace.net/number-to-words/19/)
- [20 in words](https://atoneplace.net/number-to-words/20/)

## Sources

- Calculated on this page — At One Place (/about/)