| Gold (Aureus) | 25 denarii |
| Silver (Denarius) | 6 asses |
| Silver (quinarius) | 8 asses |
| Orichalchum (sestertius) | 4 asses |
| Orichalchum (dupondius) | 2 asses |
| Copper (as) | 4 quadrantes |
| Orichalchum (semis) | 2 quadrantes |
| Copper quadrans | 1/4 as |
In 294 under Diocletian, new denominations based on the Follis were used:
| Gold Aureus | 24 argentii |
| Silver Argentius | 5 AE Follis |
| Bronze follis | 5 antoninianus |
| Bronze antoninianus | 2 denarii |
During the middle of the 300’s, the coinage was in turmoil. We do not know what the Romans called their coins during this time so we now call the bronze coinage names based upon size:
| AE1 | Larger than 25mm diameter |
| AE2 | from 21mm – 25mm diameter |
| AE3 | from 17mm – 21mm diameter |
| AE4 | under 17mm diameter |
