Free US Coin Identifier
Identify American coins from the colonial era to today — every denomination, date, mint mark, and variety. Powered by AI — completely free, no sign-up required.
About This Tool
The United States has produced some of the world's most collected coins since 1792. Our US coin identifier covers every series from the earliest Flowing Hair cents and dollars through to current production, including all Lincoln cents, Jefferson nickels, Roosevelt dimes, Washington quarters, Kennedy half dollars, and dollar coins. For each coin, the AI identifies the date, mint mark (P, D, S, W, CC, O), series, and any key varieties or doubled dies that significantly affect value.
📸 Tips for Best Results
- ✓Mint marks on US coins are small — ensure your photo captures them clearly
- ✓For cents, note whether the coin is copper-coloured (pre-1982) or zinc-coloured
- ✓State and National Park quarters: the reverse design is the key identifier
- ✓Morgan and Peace dollars: photograph the eagle reverse to identify the die variety
- ✓For Proof coins, the mirror-like fields are usually visible in photographs
🏛️ Fascinating Facts
- •The US cent is the world's most-produced coin denomination
- •The 1909-S VDB Lincoln cent had only 484,000 minted and is one of the most sought-after US coins
- •The 50 State Quarters programme (1999–2008) is estimated to have brought 140 million new collectors into the hobby
- •The US Mint operates facilities in Philadelphia, Denver, San Francisco, West Point, and Fort Knox
- •No US coin dated 1933 (except the trial pieces) was officially released into circulation
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 all US mint marks?
Yes — including P (Philadelphia), D (Denver), S (San Francisco), W (West Point), CC (Carson City, historical), and O (New Orleans, historical).
Can it identify error coins?
Yes — common US errors including doubled dies, off-centre strikes, and missing clad layers are in our database.
Ready to identify your coin?
Upload a photo now — completely free, no sign-up, instant results.
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