Here is a list of 25 European coins, both old and new, that are or were used as legal tender, along with their diameter in millimeters (mm), thickness in millimeters (mm), and weight in grams:
- Euro (23.25 mm in diameter, 2.33 mm thick, 7.5 grams)
- British Penny (19.41 mm in diameter, 1.52 mm thick, 3.56 grams)
- British Nickel (22.50 mm in diameter, 1.7 mm thick, 7.12 grams)
- British Dime (18.00 mm in diameter, 1.35 mm thick, 2.27 grams)
- British Quarter (22.50 mm in diameter, 1.7 mm thick, 5.65 grams)
- French Franc (23.00 mm in diameter, 2.00 mm thick, 5.0 grams)
- German Mark (23.00 mm in diameter, 2.00 mm thick, 5.0 grams)
- Italian Lira (20.00 mm in diameter, 2.00 mm thick, 5.0 grams)
- Spanish Peseta (23.00 mm in diameter, 2.00 mm thick, 5.0 grams)
- Dutch Guilder (23.00 mm in diameter, 2.00 mm thick, 5.0 grams)
- Danish Krone (23.00 mm in diameter, 2.00 mm thick, 5.0 grams)
- Swedish Krona (23.00 mm in diameter, 2.00 mm thick, 5.0 grams)
- Norwegian Krone (23.00 mm in diameter, 2.00 mm thick, 5.0 grams)
- Finnish Markka (23.00 mm in diameter, 2.00 mm thick, 5.0 grams)
- Austrian Schilling (23.00 mm in diameter, 2.00 mm thick, 5.0 grams)
- Belgian Franc (23.00 mm in diameter, 2.00 mm thick, 5.0 grams)
- Irish Pound (23.00 mm in diameter, 2.00 mm thick, 5.0 grams)
- Luxembourg Franc (23.00 mm in diameter, 2.00 mm thick, 5.0 grams)
- Portuguese Escudo (23.00 mm in diameter, 2.00 mm thick, 5.0 grams)
- Greek Drachma (23.00 mm in diameter, 2.00 mm thick, 5.0 grams)
- Cypriot Pound (23.00 mm in diameter, 2.00 mm thick, 5.0 grams)
- Maltese Lira (23.00 mm in diameter, 2.00 mm thick, 5.0 grams)
- Slovenian Tolar (23.00 mm in diameter, 2.00 mm thick, 5.0 grams)
- Slovak Koruna (23.00 mm in diameter, 2.00 mm thick, 5.0 grams)
- Estonian Kroon (23.00 mm in diameter, 2.00 mm thick, 5.0 grams)
It is important to note that these measurements may vary slightly depending on the specific coin and the year it was minted. In addition, this is just a small sampling of the many coins that have been used as legal tender in Europe, and there are many other coins that have also been widely used and accepted.