Convertisseur entre chiffres romains et nombres décimaux
| Romain | Décimal | Exemples |
|---|---|---|
| I | 1 | I = 1, II = 2, III = 3 |
| V | 5 | V = 5, VI = 6, VII = 7 |
| X | 10 | X = 10, XX = 20, XXX = 30 |
| L | 50 | L = 50, LX = 60, LXX = 70 |
| C | 100 | C = 100, CC = 200, CCC = 300 |
| D | 500 | D = 500, DC = 600, DCC = 700 |
| M | 1000 | M = 1000, MM = 2000, MMM = 3000 |
| Romain | Décimal | Explication |
|---|---|---|
| IV | 4 | 5 - 1 = 4 |
| IX | 9 | 10 - 1 = 9 |
| XL | 40 | 50 - 10 = 40 |
| XC | 90 | 100 - 10 = 90 |
| CD | 400 | 500 - 100 = 400 |
| CM | 900 | 1000 - 100 = 900 |