---
title: "142 in Roman numerals is CXLII"
description: "142 in Roman numerals is CXLII, written as 100 + 40 + 1 + 1. How it breaks down, how to write it, and the numbers either side."
url: https://atoneplace.net/roman-numerals/142/
site: "At One Place"
---

# 142 in Roman numerals

**142 in Roman numerals: CXLII**

142 is written CXLII in Roman numerals. That is 4 symbol groups added together, reading left to right from the largest value down.

## How it breaks down

*CXLII = 100 + 40 + 1 + 1 = 142*

| Group | Value | Subtraction | Running total |
| --- | --- | --- | --- |
| C | 100 | — | 100 |
| XL | 40 | L − X | 140 |
| I | 1 | — | 141 |
| I | 1 | — | 142 |

## Why the smaller symbol comes first

CXLII uses subtractive notation in one place: XL means L minus X, or 40. A smaller symbol placed before a larger one is subtracted from it rather than added, which is why IX is nine and not eleven.

Only six such pairs are valid — IV, IX, XL, XC, CD and CM. That restriction is what makes the notation unambiguous: IIII and IC both look like they should work, but neither is standard, and only one spelling of any number is correct.

## The symbols

| Symbol | Value | Used here |
| --- | --- | --- |
| I | 1 | yes — 2× |
| V | 5 | no |
| X | 10 | yes — 1× |
| L | 50 | yes — 1× |
| C | 100 | yes — 1× |
| D | 500 | no |
| M | 1,000 | no |

## The same number, other ways

- **In words:** One hundred forty-two
- **Roman numeral:** CXLII
- **Symbol count:** 5 characters
- **Binary:** 10001110
- **Hexadecimal:** 8E

## The numbers either side

| Number | Roman numeral |
| --- | --- |
| 140 | CXL |
| 141 | CXLI |
| 142 | CXLII ← |
| 143 | CXLIII |
| 144 | CXLIV |

## Common questions

### What is 142 in Roman numerals?

142 is CXLII.

### What does CXLII mean?

CXLII is the Roman numeral for 142 — 100 + 40 + 1 + 1.

### How do you write 142 in Roman numerals?

Take the largest value that fits and repeat until nothing is left: C (100), then XL (40), then I (1), then I (1). That gives CXLII.

## Related pages

- [140 in Roman numerals](https://atoneplace.net/roman-numerals/140/)
- [141 in Roman numerals](https://atoneplace.net/roman-numerals/141/)
- [143 in Roman numerals](https://atoneplace.net/roman-numerals/143/)
- [144 in Roman numerals](https://atoneplace.net/roman-numerals/144/)
- [4 in Roman numerals](https://atoneplace.net/roman-numerals/4/)
- [9 in Roman numerals](https://atoneplace.net/roman-numerals/9/)
- [14 in Roman numerals](https://atoneplace.net/roman-numerals/14/)
- [19 in Roman numerals](https://atoneplace.net/roman-numerals/19/)
- [40 in Roman numerals](https://atoneplace.net/roman-numerals/40/)
- [42 in Roman numerals](https://atoneplace.net/roman-numerals/42/)
- [49 in Roman numerals](https://atoneplace.net/roman-numerals/49/)
- [50 in Roman numerals](https://atoneplace.net/roman-numerals/50/)

## Sources

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