What is the size of credit card?

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Credit cards have become an integral part of our daily lives, allowing us to make purchases conveniently and securely. However, have you ever wondered about the size of a credit card? In this article, we will explore the standard dimensions of a credit card, the materials used, and any variations that exist.

Standard Dimensions

Length: The standard length of a credit card is 85.60 millimeters or 3.370 inches. This length is consistent across most credit cards, ensuring compatibility with card readers and wallets.

Width: The standard width of a credit card is 53.98 millimeters or 2.125 inches. This width is also uniform to ensure compatibility with card readers and wallets.

Thickness: The standard thickness of a credit card is 0.76 millimeters or 0.030 inches. This thickness allows the card to be easily inserted into card readers and provides durability.

It is important to note that these dimensions are standardized by the International Organization for Standardization (ISO) in the ISO/IEC 7810:2003 standard. This standard ensures that credit cards can be used universally across different countries and financial institutions.

Materials Used

PVC (Polyvinyl Chloride): PVC is the most commonly used material for credit cards. It is durable, water-resistant, and can withstand wear and tear. PVC cards are also cost-effective to produce, making them an ideal choice for financial institutions.

Composite Materials: Some credit cards are made from composite materials that combine PVC with other substances such as polyester or polycarbonate. These composite cards offer enhanced durability and can incorporate additional security features.

Metal: In recent years, metal credit cards have gained popularity among certain card issuers. These cards are typically made from stainless steel or another metal alloy. Metal credit cards offer a premium feel and are often associated with exclusive rewards programs or higher credit limits.


While the standard dimensions mentioned earlier are widely accepted, there are variations in the size of credit cards in certain regions or for specific purposes. For example:

Contactless Cards: Contactless credit cards, also known as “tap-and-go” cards, may have the same dimensions as traditional credit cards, but they often feature a symbol indicating their contactless capability. These cards allow users to make payments by simply tapping them on a compatible card reader.

Co-branded Cards: Co-branded credit cards, which are issued in partnership between a financial institution and another organization, may have unique designs or additional information on the card. However, their size typically remains consistent with standard credit cards.


In conclusion, the standard size of a credit card is 85.60 millimeters in length, 53.98 millimeters in width, and 0.76 millimeters in thickness. These dimensions are internationally recognized and ensure compatibility with card readers and wallets. Most credit cards are made from PVC, but composite materials and metal are also used for specific purposes. While there may be variations in design and additional features, the size of credit cards generally remains consistent.


– ISO/IEC 7810:2003 – Identification cards – Physical characteristics (https://www.iso.org/standard/39219.html)
– “Credit Card Dimensions” – CardPrinting.us (https://www.cardprinting.us/credit-card-dimensions.htm)
– “What Are The Standard Credit Card Sizes?” – Plastek Cards (https://www.plastekcards.com/standard-credit-card-sizes/)