Free Roman Coin Identifier
Identify Roman coins from the Republic and Empire — emperor, reverse type, mint, and period. Powered by AI — completely free, no sign-up required.
About This Tool
Roman coins are the most widely collected ancient coins in the world. Struck for over 700 years from the Roman Republic through the fall of the Western Empire in 476 CE, Roman coins depict emperors, empresses, gods, and victories. Our Roman Coin Identifier covers all Imperial denominations — gold aureus and solidus, silver denarius and siliqua, bronze sestertius, follis, and as — and identifies the emperor, the reverse type and legend, the mint, and the approximate date. The database covers all emperors from Julius Caesar through Romulus Augustulus.
📸 Tips for Best Results
- ✓The portrait style narrows down the emperor even on worn coins — beard or no beard is an important early indicator
- ✓The reverse legend (SPQR, deity name, victory legend) is key to type identification
- ✓Note the metal — gold, silver, billon (debased silver), or bronze
- ✓Mint marks on later Roman coins (often on the exergue line at the bottom of the reverse) are important identifiers
- ✓Patina colour on bronze coins — green, brown, or black — can indicate provenance region
🏛️ Fascinating Facts
- •Over 200 different emperors struck coins during the Roman Imperial period
- •The denarius was the standard silver coin of Rome for over 400 years
- •Roman coin production is estimated in the hundreds of millions per year at peak periods
- •Many Roman emperors who are otherwise known only from written sources are confirmed by their coin portraits
- •The largest Roman gold coin ever minted was struck for Maxentius — 9 aurei struck on a single planchet
Upload Photo
Photograph both sides of the coin on a dark background
AI Analyses
Our AI examines design, lettering, size, and metal
Full Details
Country, year, denomination, mint mark, and estimated value
Frequently Asked Questions
Can it identify coins of all Roman emperors?
Yes — all documented emperors from Julius Caesar through the late Western Empire are in our database. Some very obscure usurpers with extremely rare coins may receive a period-attribution rather than a specific identification.
What are the most valuable Roman coins?
Coins of rare emperors (Sponsian, Quietus, Jotapian), certain mint varieties of common emperors, and high-grade gold aurei are the most valuable. An EF aureus of a common emperor may be worth $5,000–$15,000.
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