1,225 in Roman numerals is written as MCCXXV.
1,225 is built by adding these Roman numeral groups together:
Add them up: M + CC + XX + V = 1,225.
| Number | Roman numeral |
|---|---|
| 1,222 | MCCXXII |
| 1,223 | MCCXXIII |
| 1,224 | MCCXXIV |
| 1,225 | MCCXXV |
| 1,226 | MCCXXVI |
| 1,227 | MCCXXVII |
| 1,228 | MCCXXVIII |
Roman numerals use seven letters, each with a fixed value: I = 1, V = 5, X = 10, L = 50, C = 100, D = 500, and M = 1000. Numbers are formed by combining these symbols and adding their values, working from the largest to the smallest.
When a smaller symbol appears before a larger one, it is subtracted instead of added — this is the subtractive rule. For example, IV is 4 (5 − 1) and IX is 9 (10 − 1). The same idea gives XL (40), XC (90), CD (400), and CM (900). The same symbol is never repeated more than three times in a row.
| Symbol | Value |
|---|---|
| I | 1 |
| V | 5 |
| X | 10 |
| L | 50 |
| C | 100 |
| D | 500 |
| M | 1,000 |