How Thick Are Credit Cards? Plastic Card Thickness Guide
Our clients include independent businesses and major brands such as MGM Resorts International, Nike, AAA, Macys, Marriott and more.
When you order custom plastic cards, thickness plays a major role in how they look, feel, and perform. Whether you need gift cards, membership cards, business cards, or credit card style cards, the right thickness affects durability, function, and compatibility with point of sale (POS) systems.
The standard credit card thickness is 30 mil, which equals 0.76mm or 0.030 inches. This measurement follows the ISO/IEC 7810 standard, which keeps cards compatible with ATMs, card readers, and POS terminals. It is the most common choice for payment cards, hotel key cards, and premium plastic gift cards.
A standard credit card is 30 mil thick, equal to 0.76mm. The same specification applies to debit cards, bank cards, and ATM cards, so any card meant to run through a reader or POS terminal is typically produced at 30 mil.
| Card Type | Thickness (mil) | Thickness (mm) | Common Uses |
|---|---|---|---|
| Credit and Debit Cards | 30 mil | 0.76mm | Payment, ATM, POS |
| Business Cards | 12 mil – 20 mil | 0.30mm – 0.50mm | Networking, premium branding |
| Gift Cards | 20 mil – 30 mil | 0.50mm – 0.76mm | Retail, promotions |
| Loyalty and membership cards | 20 mil – 30 mil | 0.25mm – 0.76mm | Access, rewards, identification |
| Event passes and bandges | 10 mil - 20 mil | Varies | Temporary, short term use |
A standard credit card measures 30 mil, which is 0.030 inches or 0.76mm. "Mil" refers to one thousandth of an inch, not a millimeter, which is a common point of confusion. Plastek offers several thicknesses to match different budgets and use cases.
Card thickness is listed in mil, but it helps to see the equivalent in millimeters and inches.
| Thickness (mil) | Thickness (mm) | Thickness (inches) |
|---|---|---|
| 10 mil | 0.25mm | 0.010 inches |
| 12 mil | 0.30mm | 0.012 inches |
| 20 mil | 0.50mm | 0.020 inches |
| 30 mil | 0.76mm | 0.030 inches |
Yes. A thicker card is generally more resistant to bending, cracking, and everyday wear. For high touch retail or POS cards, 30 mil consistently offers the best long term durability. Thinner options like 10 mil and 12 mil trade some of that durability for lower cost and flexibility, which makes them a good fit for promotions and short term use.
Card thickness affects which print options and materials you can use. The following options work across multiple thicknesses:
Most POS systems are built for 30 mil PVC cards. If you plan to print barcodes or encode magnetic stripes, 30 mil is the industry standard for reliable performance. Plastek cards are compatible with most major POS systems. Just provide your POS card data specifications when you place your order.
The best thickness depends on how the card will be used and how long it needs to last.
Whether you need a new loyalty program launched or want to refresh your existing cards, our team can help from concept to completion.
Contact us today to start your custom loyalty card project or call 1-888-762-2737 to speak directly with our Sales Team.
Plastek Cards manufactures custom plastic cards in a range of thicknesses, including 10 mil, 12 mil, 20 mil, and 30 mil. Every card is produced to order with full color printing and a wide set of finishing options, backed by responsive service and fast turnaround. Whether you need durable 30 mil payment style cards or economical thin cards for a promotion, we help you match the right thickness to your goals.