---
title: "27 in Roman numerals is XXVII"
description: "27 in Roman numerals is XXVII, written as 10 + 10 + 5 + 1 + 1. How it breaks down, how to write it, and the numbers either side."
url: https://atoneplace.net/roman-numerals/27/
site: "At One Place"
---

# 27 in Roman numerals

**27 in Roman numerals: XXVII**

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

## How it breaks down

*XXVII = 10 + 10 + 5 + 1 + 1 = 27*

| Group | Value | Subtraction | Running total |
| --- | --- | --- | --- |
| X | 10 | — | 10 |
| X | 10 | — | 20 |
| V | 5 | — | 25 |
| I | 1 | — | 26 |
| I | 1 | — | 27 |

## No subtraction needed

XXVII 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 — 2× |
| V | 5 | yes — 1× |
| X | 10 | yes — 2× |
| L | 50 | no |
| C | 100 | no |
| D | 500 | no |
| M | 1,000 | no |

## The same number, other ways

- **In words:** Twenty-seven
- **Roman numeral:** XXVII
- **Symbol count:** 5 characters
- **Binary:** 11011
- **Hexadecimal:** 1B

## The numbers either side

| Number | Roman numeral |
| --- | --- |
| 25 | XXV |
| 26 | XXVI |
| 27 | XXVII ← |
| 28 | XXVIII |
| 29 | XXIX |

## Common questions

### What is 27 in Roman numerals?

27 is XXVII.

### What does XXVII mean?

XXVII is the Roman numeral for 27 — 10 + 10 + 5 + 1 + 1.

### How do you write 27 in Roman numerals?

Take the largest value that fits and repeat until nothing is left: X (10), then X (10), then V (5), then I (1), then I (1). That gives XXVII.

## Related pages

- [25 in Roman numerals](https://atoneplace.net/roman-numerals/25/)
- [26 in Roman numerals](https://atoneplace.net/roman-numerals/26/)
- [28 in Roman numerals](https://atoneplace.net/roman-numerals/28/)
- [29 in Roman numerals](https://atoneplace.net/roman-numerals/29/)
- [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/)