---
title: "221 in Roman numerals is CCXXI"
description: "221 in Roman numerals is CCXXI, written as 100 + 100 + 10 + 10 + 1. How it breaks down, how to write it, and the numbers either side."
url: https://atoneplace.net/roman-numerals/221/
site: "At One Place"
---

# 221 in Roman numerals

**221 in Roman numerals: CCXXI**

221 is written CCXXI in Roman numerals. That is 5 symbol groups added together, reading left to right from the largest value down.

## How it breaks down

*CCXXI = 100 + 100 + 10 + 10 + 1 = 221*

| Group | Value | Subtraction | Running total |
| --- | --- | --- | --- |
| C | 100 | — | 100 |
| C | 100 | — | 200 |
| X | 10 | — | 210 |
| X | 10 | — | 220 |
| I | 1 | — | 221 |

## No subtraction needed

CCXXI is purely additive — every symbol is simply added to the one before it, with no subtractive pairs like IV or IX. Numbers avoid subtraction when none of their digits is a 4 or a 9.

## The symbols

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

## The same number, other ways

- **In words:** Two hundred twenty-one
- **Roman numeral:** CCXXI
- **Symbol count:** 5 characters
- **Binary:** 11011101
- **Hexadecimal:** DD

## The numbers either side

| Number | Roman numeral |
| --- | --- |
| 219 | CCXIX |
| 220 | CCXX |
| 221 | CCXXI ← |
| 222 | CCXXII |
| 223 | CCXXIII |

## Common questions

### What is 221 in Roman numerals?

221 is CCXXI.

### What does CCXXI mean?

CCXXI is the Roman numeral for 221 — 100 + 100 + 10 + 10 + 1.

### How do you write 221 in Roman numerals?

Take the largest value that fits and repeat until nothing is left: C (100), then C (100), then X (10), then X (10), then I (1). That gives CCXXI.

## Related pages

- [219 in Roman numerals](https://atoneplace.net/roman-numerals/219/)
- [220 in Roman numerals](https://atoneplace.net/roman-numerals/220/)
- [222 in Roman numerals](https://atoneplace.net/roman-numerals/222/)
- [223 in Roman numerals](https://atoneplace.net/roman-numerals/223/)
- [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/)