How big is a credit card?

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Credit cards have become an essential part of our daily lives, allowing us to make purchases conveniently and securely. But have you ever wondered how big a credit card actually is? In this article, we will delve into the dimensions and specifications of a typical credit card, exploring its size, thickness, and other important details.

The Standard Size of a Credit Card

Dimensions: A standard credit card has a length of 85.60 millimeters (3.375 inches) and a width of 53.98 millimeters (2.125 inches). These dimensions are consistent across most credit cards issued by various financial institutions.

Aspect Ratio: The aspect ratio of a credit card is typically 1.586:1. This means that the length of the card is approximately 1.586 times its width. This aspect ratio ensures compatibility with card readers and allows for easy handling.


Standard Thickness: The thickness of a credit card is usually around 0.76 millimeters (0.03 inches). This thickness is designed to strike a balance between durability and flexibility, allowing the card to withstand regular use while remaining easy to carry in wallets or cardholders.

Embossed Numbers: In addition to the standard thickness, credit cards often have embossed numbers on the front. These raised numbers, usually made of plastic, add a slight increase in thickness to the card. The purpose of embossing is to provide a tactile element that assists in manual card imprinting, although this practice has become less common with the rise of electronic payment methods.

Materials Used

PVC (Polyvinyl Chloride): Most credit cards are made of PVC, a durable and versatile plastic material. PVC is chosen for its ability to withstand wear and tear, as well as its resistance to water and chemicals. It also allows for customization through printing and embossing processes.

Additional Layers: Some credit cards may have additional layers for added security or functionality. For example, contactless cards often contain an embedded chip and antenna, while some premium cards may feature metal or other materials for a more luxurious look and feel.

Other Considerations

Regional Variations: While the dimensions mentioned above represent the standard size of credit cards, it’s important to note that there can be slight variations in different regions. For example, in some countries, credit cards may have a slightly different length or width to accommodate local standards or regulations.

Mini Cards: In certain cases, credit card issuers may offer mini or compact versions of their standard cards. These mini cards have the same functionality as regular credit cards but are smaller in size, making them more convenient to carry in compact wallets or keychain holders.


In conclusion, a typical credit card has a length of 85.60 millimeters (3.375 inches), a width of 53.98 millimeters (2.125 inches), and a thickness of 0.76 millimeters (0.03 inches). These dimensions, along with the aspect ratio, ensure compatibility with card readers and ease of handling. Credit cards are primarily made of PVC, a durable and customizable material, with additional layers added for security or functionality. While there may be slight regional variations, these dimensions are widely accepted across most credit cards.


– Visa:
– Mastercard:
– American Express: