The size of credit card inches is standardized to ensure compatibility with card readers and wallets. There are three ways to express the size:
Inches: Standard credit cards are 3.375 inches wide by 2.125 inches high. This is also the size of a standard driver’s license.
Millimeters: In millimeters, credit cards are 85.60 mm wide by 53.98 mm high.
Centimeters: If you prefer centimeters, the standard size is 8.56 cm wide by 5.398 cm high.
