Guide · Card size
Trading card size, explained
The standard is 2.5 x 3.5 inches. Here's what that means, why it's the standard, and how a Cardbop card fits it.
The short answer
The standard trading card size is 2.5 x 3.5 inches (about 63.5 x 88.9 mm), in a portrait orientation. It's the same size as baseball, basketball, and most collectible cards, so it fits standard sleeves, top-loaders, and cases. Cardbop makes standard-size cards, and the Display Card comes sealed in a display case.
The standard, at a glance
Standard size
2.5 x 3.5 inches — the same size as baseball, basketball, and most sports and collectible cards.
In millimeters
About 63.5 x 88.9 mm — the widely used trading-card standard.
Portrait orientation
Taller than it is wide, which is why a portrait photo frames best.
Fits standard sleeves
Standard-size cards fit common penny sleeves, top-loaders, and display cases.
More: cards with a case · what they cost · custom trading cards
Make a standard-size card of anyone.
Upload a photo and make a real, standard-size custom trading card — free to design, from $25.
Frequently asked questions
What is the standard trading card size?+
The standard trading card size is 2.5 x 3.5 inches (about 63.5 x 88.9 mm) in a portrait orientation. It's the same size used for baseball, basketball, and most sports and collectible cards.
What size are Cardbop cards?+
Cardbop makes standard-size trading cards, so they look and feel like the sports and collectible cards you already know. The Display Card comes sealed in a display case.
Why is 2.5 x 3.5 inches the standard?+
It's the size the trading card industry settled on decades ago, so cards, sleeves, top-loaders, binders, and cases are all built around it. Sticking to standard size means your card fits everything.
Do standard cards fit sleeves and cases?+
Yes — a 2.5 x 3.5 inch card fits common penny sleeves, top-loaders, and display cases made for standard trading cards.
How much does a custom card cost?+
A single Display Card is $25 and a 10-card Card Pack is $50. Designing is free, and you can personalize one in minutes.