Liste over romertal / tal fra 1 til 20.
| Nummer | Roman Numeral | Beregning | 
|---|---|---|
| 0 | ikke defineret | |
| 1 | Jeg | 1 | 
| 2 | II | 1 + 1 | 
| 3 | III | 1 + 1 + 1 | 
| 4 | IV | 5-1 | 
| 5 | V | 5 | 
| 6 | VI | 5 + 1 | 
| 7 | VII | 5 + 1 + 1 | 
| 8 | VIII | 5 + 1 + 1 + 1 | 
| 9 | IX | 10-1 | 
| 10 | X | 10 | 
| 11 | XI | 10 + 1 | 
| 12 | XII | 10 + 1 + 1 | 
| 13 | XIII | 10 + 1 + 1 + 1 | 
| 14 | XIV | 10-1 + 5 | 
| 15 | XV | 10 + 5 | 
| 16 | XVI | 10 + 5 + 1 | 
| 17 | XVII | 10 + 5 + 1 + 1 | 
| 18 | XVIII | 10 + 5 + 1 + 1 + 1 | 
| 19 | XIX | 10-1 + 10 | 
| 20 | XX | 10 + 10 | 
Advertising