---
title: "400 in words"
description: "400 in words is \"four hundred\". 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/400/
site: "At One Place"
---

# 400 in words

**400 in words: Four hundred**

400 is written "four hundred". That spelling is the same in British and American English.

## Where each word comes from

*400 = 400*

| Digit | Place | Worth | Spoken as |
| --- | --- | --- | --- |
| 4 | hundreds | 400 | four hundred |

## The same number, other ways

- **In words (US):** Four hundred
- **In words (UK):** Four hundred
- **Ordinal:** 400th — four hundredth
- **Roman numeral:** CD
- **Digits:** 400

## Writing it on a cheque

On a cheque the amount line reads "Four hundred and 00/100" — or "Four hundred 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 400 in words?

Four hundred. In British English, "four hundred".

### What is the ordinal of 400?

Four hundredth, written 400th.

## Related pages

- [400 in Roman numerals](https://atoneplace.net/roman-numerals/400/)
- [397 in words](https://atoneplace.net/number-to-words/397/)
- [398 in words](https://atoneplace.net/number-to-words/398/)
- [399 in words](https://atoneplace.net/number-to-words/399/)
- [401 in words](https://atoneplace.net/number-to-words/401/)
- [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/)