This is a very good Roman numeral converter that can easily convert numbers to Roman numerals or Roman numerals to numbers. All you have to do is type in the Arabic or Roman numeral in the designated box and hit the "Convert" button. Roman Numeral Converter will then show you the exact answer and the calculation process.
| Number | Roman Numeral | Calculation |
|---|---|---|
| 1 | I | 1 |
| 2 | II | 1+1 |
| 3 | III | 1+1+1 |
| 4 | IV | 5-1 |
| 5 | V | 5 |
| 6 | VI | 5+1 |
| 7 | VII | 5+11 |
| 8 | VIII | 5+111 |
| 9 | IX | 10-1 |
| 10 | X | 10 |
| 11 | XI | 10+1 |
| 12 | XII | 10+1+1 |
| 13 | XIII | 10+1+1+1 |
| 14 | XIV | 10+5-1 |
| 15 | XV | 10+5 |
| 16 | XVI | 10+5+1 |
| 17 | XVII | 10+5+11 |
| 18 | XVIII | 10+5+111 |
| 19 | XIX | 10+10-1 |
| 20 | XX | 10+10 |
| 25 | XXV | 10+10+5 |
| 30 | XXX | 10+10+10 |
| Number | Roman Numeral | Calculation |
|---|---|---|
| 40 | XL | 50-10 |
| 50 | L | 50 |
| 60 | LX | 50+10 |
| 70 | LXX | 50+10+10 |
| 80 | LXXX | 50+10+10+10 |
| 90 | XC | 100-10 |
| 100 | C | 100 |
| 200 | CC | 100+100 |
| 300 | CCC | 100+100+100 |
| 400 | CD | 500-100 |
| 500 | D | 500 |
| 600 | DC | 500+100 |
| 700 | DCC | 500+100+100 |
| 800 | DCCC | 500+100+100+100 |
| 900 | CM | 1000-100 |
| 1000 | M | 1000 |
| 5000 | V̅ | 5000 |
| 10000 | X̅ | 10000 |
| 50000 | L̅ | 50000 |
| 100000 | C̅ | 100000 |
| 500000 | D̅ | 500000 |
| 1000000 | M̅ | 1000000 |