---
title: "84 in Roman numerals is LXXXIV"
description: "84 in Roman numerals is LXXXIV, written as 50 + 10 + 10 + 10 + 4. How it breaks down, how to write it, and the numbers either side."
url: https://atoneplace.net/roman-numerals/84/
site: "At One Place"
---

# 84 in Roman numerals

**84 in Roman numerals: LXXXIV**

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

## How it breaks down

*LXXXIV = 50 + 10 + 10 + 10 + 4 = 84*

| Group | Value | Subtraction | Running total |
| --- | --- | --- | --- |
| L | 50 | — | 50 |
| X | 10 | — | 60 |
| X | 10 | — | 70 |
| X | 10 | — | 80 |
| IV | 4 | V − I | 84 |

## Why the smaller symbol comes first

LXXXIV uses subtractive notation in one place: IV means V minus I, or 4. 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 — 1× |
| V | 5 | yes — 1× |
| X | 10 | yes — 3× |
| L | 50 | yes — 1× |
| C | 100 | no |
| D | 500 | no |
| M | 1,000 | no |

## The same number, other ways

- **In words:** Eighty-four
- **Roman numeral:** LXXXIV
- **Symbol count:** 6 characters
- **Binary:** 1010100
- **Hexadecimal:** 54

## The numbers either side

| Number | Roman numeral |
| --- | --- |
| 82 | LXXXII |
| 83 | LXXXIII |
| 84 | LXXXIV ← |
| 85 | LXXXV |
| 86 | LXXXVI |

## Common questions

### What is 84 in Roman numerals?

84 is LXXXIV.

### What does LXXXIV mean?

LXXXIV is the Roman numeral for 84 — 50 + 10 + 10 + 10 + 4.

### How do you write 84 in Roman numerals?

Take the largest value that fits and repeat until nothing is left: L (50), then X (10), then X (10), then X (10), then IV (4). That gives LXXXIV.

## Related pages

- [82 in Roman numerals](https://atoneplace.net/roman-numerals/82/)
- [83 in Roman numerals](https://atoneplace.net/roman-numerals/83/)
- [85 in Roman numerals](https://atoneplace.net/roman-numerals/85/)
- [86 in Roman numerals](https://atoneplace.net/roman-numerals/86/)
- [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/)