Standard American (poker) board game cards measure 63 x 88mm (2.5 x 3.5 inches), while European size cards measure 59 x 92mm (2.3 x 3.6 inches). The European cards are taller and narrower than their American counterparts.
If you’ve ever stared at a row of card sleeves wondering which ones fit your board game, you’re not alone. I spent way too long buying the wrong sleeves before figuring out the difference between “standard,” “poker,” and “European” sizes. This guide walks you through exactly how to tell if your board game cards are European or standard size, with simple measurement methods you can try at home.
The terminology is genuinely confusing. Sleeve manufacturers use different labels for the same dimensions. “Standard” can mean standard American in some shops and standard European in others. By the end of this article, you’ll know which cards you have and exactly which sleeves or accessories fit them.
Table of Contents
What Are Standard Board Game Card Sizes?
Standard board game card sizes fall into a handful of common dimensions. Most games you’ll encounter use one of seven standard sizes, but the two you’ll see most often are poker size (63 x 88mm) and bridge size (57 x 88mm).
The confusing part is that “standard” doesn’t always mean the same thing. In the US board game market, “standard” or “standard American” typically refers to poker-sized cards measuring 63 x 88mm. In European markets, “standard” often means the slightly taller, narrower 59 x 92mm format.
Here are the most common board game card dimensions you’ll run into:
Poker size: 63 x 88mm (2.5 x 3.5 inches)
Bridge size: 57 x 88mm (2.25 x 3.5 inches)
Standard European: 59 x 92mm (2.3 x 3.6 inches)
Mini European: 44 x 67mm (1.7 x 2.6 inches)
Tarot size: 70 x 120mm (2.8 x 4.7 inches)
Square (Mint tin): 41 x 41mm or similar
If your game came from a major US publisher, you probably have poker size. If it came from a German, French, or Eastern European publisher, it likely uses the European 59 x 92mm format.
Standard American (Poker) vs European Card Sizes
Standard American cards are 63 x 88mm and European cards are 59 x 92mm. That’s a 4mm difference in width and a 4mm difference in height, but in opposite directions, which is why they feel noticeably different in your hand.
The American poker size is the same dimension used for casino poker cards and most American-made board games. Catan, Ticket to Ride, Pandemic, and Wingspan all use this size. The European size comes from the German-style “Euro game” tradition, where games like Agricola, Carcassonne, and Concordia use the taller 59 x 92mm format.
Here’s the side-by-side comparison:
| Feature | Standard American (Poker) | Standard European |
|---|---|---|
| Width | 63mm (2.5 inches) | 59mm (2.3 inches) |
| Height | 88mm (3.5 inches) | 92mm (3.6 inches) |
| Shape | Slightly wider than tall | Narrower and taller |
| Common publishers | USA-based studios | German, French publishers |
| Typical sleeve size | 66 x 91mm | 62 x 95mm |
If you stack the two cards side by side, the difference is obvious. The European card is roughly the width of a standard poker card but noticeably taller, like a slim business card stood on its side.
Complete Card Size Comparison Chart
Use this reference chart to identify any common board game card size. These dimensions come straight from sleeve manufacturer specs and BoardGameGeek community measurements.
| Card Type | Millimeters | Inches | Typical Sleeve Size |
|---|---|---|---|
| Poker / Standard American | 63 x 88mm | 2.5 x 3.5 | 66 x 91mm |
| Bridge | 57 x 88mm | 2.25 x 3.5 | 60 x 91mm |
| Standard European | 59 x 92mm | 2.3 x 3.6 | 62 x 95mm |
| Mini European | 44 x 67mm | 1.7 x 2.6 | 46 x 70mm |
| Tarot | 70 x 120mm | 2.8 x 4.7 | 73 x 123mm |
| Mint Tin / Square | 41 x 41mm | 1.6 x 1.6 | 44 x 44mm |
| Micro Cards | 30 x 50mm | 1.2 x 2.0 | 33 x 53mm |
Some games use a slightly larger “American European” or “Standard American European” hybrid around 56 x 87mm. These exist in the wild and can throw off your measurements, so don’t panic if your cards don’t match any row exactly.
Why Card Sizes Differ Between Europe and America
Card sizes differ between Europe and America because the two regions developed gaming traditions independently. American games evolved from poker-playing culture, while European games grew out of different printing traditions.
The German game industry in particular standardized on the 59 x 92mm format in the late 20th century, partly because it allowed more efficient printing layouts on standard German paper sizes. When publishers like Kosmos, Ravensburger, and Hans im Glück printed millions of cards, they optimized their presses around that exact dimension.
US publishers like Hasbro, Fantasy Flight Games, and Asmodee USA inherited the poker card standard from playing card manufacturers. The 63 x 88mm poker format was already mass-produced, so it made economic sense for American board game companies to use the same dimensions.
This regional split means that any “Euro-style” game published in America, like a Wingspan reprint or US edition of Carcassonne, often gets retooled to poker size for the American market. Check your box carefully if you own multiple editions.
How to Measure Your Board Game Cards at Home?
To measure your cards, use a ruler or calipers and record the width and height in millimeters. If the card is roughly 63 x 88mm it’s poker/American standard. If it’s roughly 59 x 92mm it’s European.
Here’s my step-by-step method that works without any specialized tools:
Step 1: Gather Your Tools
Grab a clear ruler marked in millimeters. A standard 12-inch ruler works fine since 1 inch equals 25.4mm. A metric ruler makes this faster, but any ruler will do if you can convert the units.
Step 2: Measure the Width
Place the card short-side down on a flat surface. Hold the ruler across the top edge and measure the shorter dimension. Write down the number in millimeters.
Step 3: Measure the Height
Rotate the card 90 degrees. Measure the longer edge from top to bottom and record that number.
Step 4: Match Against the Chart
Compare your measurements to the chart above. If you see 63 x 88mm, you have poker size. If you see 59 x 92mm, you have European size. If your numbers fall within 1-2mm of either, that’s still the right category.
Step 5: Handle Borderline Cases
Some games use non-standard sizes like 56 x 87mm or 65 x 100mm. If your card doesn’t match any row, search BoardGameGeek for your specific game’s card dimensions. The community-maintained database lists exact measurements for thousands of titles.
Pro tip: Measure multiple cards from the same deck. Some games mix sizes, using one dimension for player cards and another for currency or victory point tokens.
Common Games and Their Card Sizes
Knowing which games use which sizes helps you identify cards faster. Here are popular titles in each category.
Poker Size (63 x 88mm) Games
Ticket to Ride, Pandemic, Wingspan, Splendor, Codenames, Azul, and 7 Wonders all use the standard American 63 x 88mm format. If your game came from a US publisher and the cards feel like poker cards, this is your size.
European Size (59 x 92mm) Games
Carcassonne, Catan (German editions), Agricola, Concordia, Bohnanza, and El Grande use the 59 x 92mm European format. These cards feel slightly slimmer than poker cards but stand a bit taller.
Mini European (44 x 67mm) Games
Love Letter, Lost Cities, and many portable travel games use the mini European size. These are roughly half the height of standard cards.
Bridge Size (57 x 88mm) Games
Bridge size shows up less often in modern board games but appears in some classic titles and trick-taking games. If your cards are noticeably narrower than poker cards but the same height, you have bridge size.
Choosing the Right Sleeves for Your Cards
Once you know your card size, pick sleeves rated for that exact dimension. Sleeves sized 66 x 91mm fit poker cards, while 62 x 95mm sleeves fit European cards.
Here are the sleeve-buying rules I’ve learned the hard way:
Match the size, not the name. A “standard” sleeve from one brand might be 66 x 91mm (American) while another brand’s “standard” might be 62 x 95mm (European).
Add 3mm to each dimension. Sleeves are typically 3mm larger than the cards they fit, giving snug but not tight coverage.
Buy from one manufacturer. Mixing Mayday, Fantasy Flight, and Ultra Pro sleeves can give you inconsistent finishes that don’t shuffle well together.
Test one sleeve first. Before buying 200 sleeves for your deck, buy a single pack and confirm the fit.
Consider premium backs. Matte-back sleeves shuffle better than glossy ones and show less wear over time.
For mixed-size games, label each card stack with its sleeve size. I use small sticky notes on the side of each card pile to remind myself which sleeves go where. Saves hours of sorting later.
Frequently Asked Questions
What is the standard size of board game cards?
The most common standard board game card size is 63 x 88mm (2.5 x 3.5 inches), often called poker size or standard American. The second most common is the European standard at 59 x 92mm (2.3 x 3.6 inches), which is slightly taller and narrower.
What is the standard European card size?
The standard European card size is 59 x 92mm (2.3 x 3.6 inches). This format is common in German-style euro games like Carcassonne, Agricola, and Concordia. Sleeves for these cards typically measure 62 x 95mm.
What makes a board game an Euro game?
A Euro game, or German-style game, is characterized by indirect player interaction, strategic decision-making, and economic mechanics rather than luck or conflict. Popular examples include Catan, Carcassonne, and Agricola. Many Euro games also use the 59 x 92mm European card size.
Are card sizes standardized?
Card sizes are not fully standardized, but a few common dimensions cover most board games. Poker size (63 x 88mm), bridge size (57 x 88mm), and European size (59 x 92mm) make up the majority of games on the market. Some games use unique dimensions.
How do I measure cards if I don’t have a ruler?
Most credit cards measure 85.6 x 53.98mm, so you can use one as a reference. Standard US paper is 8.5 x 11 inches (215.9 x 279.4mm), giving you rough reference points. For best accuracy, use a ruler with millimeter markings.
Final Thoughts
Knowing how to tell if your board game cards are European or standard size saves you money on wrong-sized sleeves and protects your collection. Grab a ruler, measure one card, and match it to the chart above. Within a few minutes you’ll know exactly which accessories fit your games.
If you’re still unsure about a specific game, BoardGameGeek’s database has measurements for thousands of titles. Search for your game there and you’ll find community-verified dimensions, often with sleeve recommendations from experienced players.