---
title: "18 in words"
description: "18 in words is \"eighteen\". 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/18/
site: "At One Place"
---

# 18 in words

**18 in words: Eighteen**

18 is written "eighteen". That spelling is the same in British and American English.

## Where each word comes from

*10 + 8 = 18*

| Digit | Place | Worth | Spoken as |
| --- | --- | --- | --- |
| 1 | tens | 10 | ten |
| 8 | ones | 8 | eight |

## The same number, other ways

- **In words (US):** Eighteen
- **In words (UK):** Eighteen
- **Ordinal:** 18th — eighteenth
- **Roman numeral:** XVIII
- **Digits:** 18

## Writing it on a cheque

On a cheque the amount line reads "Eighteen and 00/100" — or "Eighteen 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 18 in words?

Eighteen. In British English, "eighteen".

### What is the ordinal of 18?

Eighteenth, written 18th.

## Related pages

- [18 in Roman numerals](https://atoneplace.net/roman-numerals/18/)
- [15 in words](https://atoneplace.net/number-to-words/15/)
- [16 in words](https://atoneplace.net/number-to-words/16/)
- [17 in words](https://atoneplace.net/number-to-words/17/)
- [19 in words](https://atoneplace.net/number-to-words/19/)
- [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/)
- [20 in words](https://atoneplace.net/number-to-words/20/)
- [21 in words](https://atoneplace.net/number-to-words/21/)
- [40 in words](https://atoneplace.net/number-to-words/40/)

## Sources

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