What Size Are Credit Cards?

The average credit card is 3.37 inches wide by 2.125 inches tall. However, there is no standard size for credit cards. Some companies make their cards slightly larger or smaller to stand out.

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Credit card dimensions

Visa, Mastercard, American Express, and Discover all have cards that are 3-3/8 inches wide and 2-1/4 inches wide. The credit card size is standardized so that ATMs and card readers can accommodate any card. The industry refers to this size as CR-80, or ISO 7810 ID-1.

Standard credit card size

Most credit cards are the standard credit card size of 2-1/8 inches by 3-3/8 inches. This size is also called CR80, or credit card OCR. OCR stands for optical character recognition, which is the technology that is used to read the information on the credit card. The CR80 standard credit card size is important because it is the size that will fit into most wallets and purses. If you have a wallet that does not accommodate a standard credit card size, you may need to look for a slim credit card or a mini credit card.

Credit card thickness

The thickness of a credit card is 0.76mm (25/1000 inches).

Credit card issuers

There are many different sizes of credit cards available on the market today. The most common credit card size is the standard credit card, which is about 2-1/4 inches wide by 3-1/2 inches long. This size credit card is the size of a standard drivers license.

American Express

American Express credit cards are typically rectangular in shape, with rounded corners. The card size is 2.5 inches by 3.5 inches (W x H).


Discover offers a variety of credit card products, including both personal and business cards. All of Discover’s credit cards are standard size (3-3/8″ x 2-1/8″), which is the industry standard.


Mastercard is a technology company that connects consumers, financial institutions and businesses in more than 210 countries and territories. Mastercard’s products and solutions make everyday commerce activities – such as shopping, traveling, running a business and managing finances – easier, more secure and more efficient for everyone.

Mastercard is a leading global payments & technology company that connects consumers, businesses, merchants, issuers & governments around the world.


Visa (NYSE: V) is the world’s largest credit card issuer by purchase volume and dominates the U.S. market with almost 60% market share. The company operates in more than 200 countries and enables customers to make payments in more than 150 currencies. Visa also offers products such as debit cards, prepaid cards, and commercial cards.

How to measure credit cards

Credit cards come in all shapes and sizes, but they all have one thing in common: they need to fit in your wallet! So, how do you know what size credit card to get? Here are a few things to consider.

Measuring credit card length

When you measure a credit card, you generally start from the bottom left corner and measure to the top right corner. The standard credit card size is 3.370 inches by 2.125 inches, or about the size of a standard driver’s license. Some credit cards are slightly longer, but not by much. The average credit card is 3.395 inches by 2.165 inches.

Measuring credit card width

Credit card width is generally measured in millimeters, and most credit cards are between 85 and 90 mm wide. If you’re trying to figure out the size of a credit card, the easiest way to do it is to measure it with a ruler. To get an accurate measurement, make sure to measure from one side of the card to the other, not including the raised numbers on the front or back.

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