120 in Roman numerals
120 in Roman numerals
CXX
120 is written CXX in Roman numerals. That is 3 symbol groups added together, reading left to right from the largest value down.
How it breaks down
| Group | Value | Subtraction | Running total |
|---|---|---|---|
| C | 100 | — | 100 |
| X | 10 | — | 110 |
| X | 10 | — | 120 |
No subtraction needed
CXX 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 | no |
| V | 5 | no |
| X | 10 | yes — 2× |
| L | 50 | no |
| C | 100 | yes — 1× |
| D | 500 | no |
| M | 1,000 | no |
The same number, other ways
- In words
- One hundred twenty
- Roman numeral
- CXX
- Symbol count
- 3 characters
- Binary
- 1111000
- Hexadecimal
- 78
The numbers either side
| Number | Roman numeral |
|---|---|
| 118 | CXVIII |
| 119 | CXIX |
| 120 | CXX ← |
| 121 | CXXI |
| 122 | CXXII |
Common questions
- What is 120 in Roman numerals?
- 120 is CXX.
- What does CXX mean?
- CXX is the Roman numeral for 120 — 100 + 10 + 10.
- How do you write 120 in Roman numerals?
- Take the largest value that fits and repeat until nothing is left: C (100), then X (10), then X (10). That gives CXX.
Related pages
- 118 in Roman numerals CXVIII
- 119 in Roman numerals CXIX
- 121 in Roman numerals CXXI
- 122 in Roman numerals CXXII
- 4 in Roman numerals IV
- 9 in Roman numerals IX
- 14 in Roman numerals XIV
- 19 in Roman numerals XIX
- 40 in Roman numerals XL
- 42 in Roman numerals XLII
- 49 in Roman numerals XLIX
- 50 in Roman numerals L
Sources
- Calculated on this page — At One Place