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If you’re getting packaging made for a card game or you just want to organize your own collection, knowing the exact dimensions matters more than most people realize. Every card game has its own sizing and that small detail affects everything from storage to printing to how the final packaging box feels in your hand. This guide walks through poker, tarot, oracle and kids’ cards, with measurements in inches, cm and mm.
History of Playing Card Games
Playing cards go back centuries. Most historians trace their origin to Asia, from where they spread along trade routes into Europe, picking up new designs and suits along the way. Over time, the materials, shapes and even the number of cards in a deck kept changing. Today, poker and tarot each have their own massive following, with dozens of regional variations in between.
How Many Cards Are in a Deck?
A standard deck has 52 cards, sometimes with jokers thrown in. Tarot decks are different, they usually run to 78 cards, split between major and minor arcana. Kids’ decks tend to be smaller in card count and size, made for little hands. A full 52-card deck usually comes out to roughly 12–18mm thick, depending on the card stock used.
Do Playing Cards Have Different Shapes?
Most cards are rectangular, but that’s not a rule. Circular playing cards have become a favorite among collectors and novelty buyers. Some brands experiment with polygonal shapes too and fully custom novelty shapes are easy to find in the market, especially for branded gifts and promotions.
What Are the Standard Dimensions of Different Playing Cards?
Here’s a quick reference table covering the most common card types, from card size to box size.
| Card Type | Card Size (in) | Card Size (mm) | Card Size (cm) | Box Size (approx.) |
| Poker | 2.5 x 3.5 | 63.5 x 88.9 | 6.35 x 8.89 | 2.6 x 3.6 x 1 in |
| Tarot | 2.75 x 4.75 | 70 x 121 | 7 x 12.1 | 2.9 x 5 x 1.3 in |
| Bridge | 2.25 x 3.5 | 57 x 89 | 5.7 x 8.9 | 2.4 x 3.6 x 1 in |
| European | 2.4 x 3.7 | 60 x 94 | 6 x 9.4 | 2.5 x 3.8 x 1 in |
| MTG | 2.5 x 3.5 | 63 x 88 | 6.3 x 8.8 | Similar to poker, thicker stock |
Standard Poker Card Dimensions
Poker cards follow the classic 2.5 x 3.5 inch standard, which comes out to 63.5 x 88.9mm. Boxes are usually made with a bit of extra room so the deck slides in and out smoothly.
Standard Tarot Card Dimensions
Tarot cards run larger than poker cards 2.75 x 4.75 inches, or 70 x 121mm. That extra height and width means the box has to be longer and wider too.
Bridge Card Dimensions
Bridge cards are narrower than standard poker cards, at 2.25 x 3.5 inches. That narrower width is intentional, it makes it easier to fan out a large hand of cards.
European-Style Playing Card Dimensions
European decks follow slightly different sizing from the American standard, usually around 2.4 x 3.7 inches. The design and suit symbols are also quite different from American cards.
MTG Playing Card Dimensions
Magic: The Gathering cards are close to poker size at 2.5 x 3.5 inches, but the card stock is noticeably thicker, which affects both shuffling and how long the cards last.
What Are the Different Oracle Card Sizes?
Oracle cards don’t follow one fixed size. It really comes down to the purpose of the deck.
Traditional Oracle Cards sit close to poker size, around 2.75 x 4.5 inches. Tall Oracle Cards run longer, sometimes up to 3 x 5.5 inches. Wide Oracle Cards are wider than they are tall, flipping the usual proportions. Large Oracle Cards are made for display and collector decks, reaching up to 4 x 6 inches. Mini Oracle Cards are compact and portable, roughly 2 x 3 inches. And when none of these standard sizes fit, Custom-Size Oracle Cards can be made to match the exact needs of the deck, with the box dimensions adjusted to match.
What Are the Standard Dimensions of Kids' Playing Cards?
Kids’ cards are deliberately made smaller and easier to grip, since small hands need a different fit than adult decks. Custom sizing is also common depending on the target age group.
- Traitors Abroad – roughly 2.5 x 3.5 inches, a standard kids’ format
- Slap Jack – usually 2.5 x 3.5 inches or slightly smaller, built for fast play
- Old Maid – 2.5 x 3.5 inches, made with easy-grip stock
- Crazy 8s – 2.5 x 3.5 inches, sometimes available in a smaller custom size
Brands often adjust these dimensions slightly to fit their own packaging style.
How Does Card Thickness Affect Playing Card Dimensions?
A single card’s thickness seems tiny on its own, but stacked together across a full deck, it has a direct impact on box depth. A box that’s too tight can damage the cards over time and one that’s too loose lets the deck shift around inside. That’s why thickness needs to be measured alongside length and width, not treated as an afterthought.
What Is the Standard Thickness of Playing Cards?
A single card usually measures around 0.3mm thick and a full 52-card deck can run anywhere from 12mm to 18mm, depending on the stock. Thicker cards feel more premium in hand, but they also mean the box needs to be built a little bigger to fit.
What Materials and Finishes Are Used for Playing Cards?
Cards are typically made from cardstock, plastic-coated paper or pure PVC. Common finishes include linen texture, matte and glossy coatings, all of which improve durability and how the cards feel when you shuffle them.
How to Choose the Right Box Size for Your Playing Cards?
Start by measuring the card’s length and width, then measure the full deck’s thickness once it’s stacked together. Leave a little extra room so the cards slide in and out without friction and factor in space for any inserts or extra components that come with the deck. If the box is going to be shipped, sturdy material matters for protection along the way. And if none of the standard sizes fit what you’re working with, custom box dimensions are the better route.
Choose the Right Dimensions for Your Playing Cards
Whether you’re packaging poker, tarot, oracle or kids’ cards, accurate dimensions are the foundation everything else is built on. Even a small measurement error can throw off the entire fit and finish of the final product. If the standard sizes don’t match what you need, custom playing card packaging built around your deck’s exact measurements is the safer bet, take your deck’s measurements and reach out to a packaging provider who can build it around them.
Frequently Asked Questions About Playing Card Dimensions
The standard size of poker cards is 2.5 × 3.5 inches (63.5 × 88.9 mm).
Standard poker size or slightly smaller, for an easier grip.
Yes, custom sizing is widely available for any type of deck.
A standard poker card measures 63.5 x 88.9mm.
The standard size of American playing cards is 2.5 × 3.5 inches (63.5 × 88.9 mm).
Tarot cards are roughly an inch taller than standard poker cards.