| 1 | I | 11 | XI | 10 | X | 100 | C | 1000 | M | 10000 | X | 100000 | C |
| 2 | II | 12 | XII | 20 | XX | 200 | CC | 2000 | MM | 20000 | XX | 200000 | CC |
| 3 | III | 13 | XIII | 30 | XXX | 300 | CCC | 3000 | MMM | 30000 | XXX | 300000 | CCC |
| 4 | IV | 14 | XIV | 40 | XL | 400 | CD | 4000 | MV | 40000 | XL | 400000 | CD |
| 5 | V | 15 | XV | 50 | L | 500 | D | 5000 | V | 50000 | L | 500000 | D |
| 6 | VI | 16 | XVI | 60 | LX | 600 | DC | 6000 | VI | 60000 | LX | 600000 | DC |
| 7 | VII | 17 | XVII | 70 | LXX | 700 | DCC | 7000 | VII | 70000 | LXX | 700000 | DCC |
| 8 | VIII | 18 | XVIII | 80 | LXXX | 800 | DCCC | 8000 | VIII | 80000 | LXXX | 800000 | DCC |
| 9 | IX | 19 | XIX | 90 | XC | 900 | CM | 9000 | VIX | 90000 | XC | 900000 | CM |