List of Roman Coins


Roman coins were minted in bronze, silver and gold. Throughout the years, the values of coins have fluctuated with inflation and intentional debasing. Emperors sometimes instituted new denominations of coins, while others were replaced or simply fell out of circulation. The base bronze coin was the As, the base silver coin was the Sestertius and the base gold coin was the Aureus. These coins formed the standard from which the values of other coins were calculated.


  • According to Zander H. Klawans, coins called the aes grave (heavy bronze) began appearing around the year 300 BCE. The denominations of all early bronze coins contained the prow of a ship on the reverse. The obverse (front) had depictions of gods. The as depicted Janus; the semis, Jupiter; the triens, Minerva; the quadrans, Hercules; the sextans, Mercury; the uncia, Roma.

    As: The base bronze coin

    Semis: worth 1/2 an as
    Triens: worth 1/2 of an as
    Quadrans: worth 1/4 of an as
    Sextans: worth 1/6 of an as
    Uncia: worth 1/12 of an as
    Dupondius: worth two asses
    Tripondius: worth three asses
    Quadrussis: worth four asses
    Quincussis: worth five asses
    Decussis: worth 10 asses
    Follis: introduced by Emperor Diocletian; bronze with a silver wash
    Centenionalis: introduced by Emperor Constantine I; bronze with a silver wash


  • Francesco Gnecchi states that the first silver coins were struck in 268 BCE. They depicted the goddess Minerva on the obverse and Castor and Pollux (the Dioscuri) with the word Roma on the reverse. Later they depicted the emperors.

    Sestertius: the base silver coin; worth 2 1/2 asses
    Quinarius: worth two sestertii
    Victoriatus: originally used to replace foreign coinage; later worth two sestertii
    Denarius: worth four sestertii
    Antoninianus: introduced by Emperor Caracalla; worth eight sestertii
    Siliqua: introduced by Emperor Constantine I; worth 1/24 of a solidus

    Miliarensis: introduced by Emperor Constantine I; worth 1/14 of a solidus


  • According to Gnecchi, the first gold coins were struck in 217 BCE. They depicted the god Mars on the obverse and an eagle with the word Roma on the reverse. Later they contained portraits of emperors.

    Aureus: the base gold coin; originally worth 20 denarii
    Quinarius: cast in silver and gold; both worth two sestertii
    Solidus: introduced by Constantine I to replace the aureus; worth one denarius
    Semis: worth 1/2denarius or 1/2 solidus
    Triens: worth 1/3 denarius


  • "Reading and Dating Roman Imperial Coins"; Zander H. Klawans; 1959
  • "Roman Coins"; Francesco Gnecchi; 1903
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