World Coin Catalog & Specifications
Browse world coins by country, year, metal tone, or Krause KM# number, complete with verified gram weights, millimeter dimensions, and alloy compositions.
Browse World Coins
What Every Coin Profile Includes
Every coin record is structured with standardized physical and metallurgical parameters to assist collectors and coin roll hunters.
Exact Metric Dimensions
Verify official mint weight in grams (to 0,01 g precision), diameter in millimeters, edge thickness, and reeding or lettering profiles.
Metallurgy & Alloy Purity
Inspect complete metal compositions, bi-metallic core and ring alloys, magnetic response, and fine silver or gold bullion weight.
Krause (KM#) & Roll Links
Cross-reference international Krause catalog numbers, minting years, and open any coin directly inside our weight and roll calculators.