Magic card size: dimensions that matter

A Magic: The Gathering card measures 63mm wide by 88mm tall, with a thickness of 0.305mm. In inches, that works out to about 2.48 x 3.46. That's the "standard" trading card size, and it's shared with Pokemon, One Piece Card Game, Disney Lorcana, and Flesh and Blood, so anything sized for Magic will also hold those games without modification.

The exact numbers

63x88mm is the figure you'll see repeated across sleeve packaging, deck box specs, and binder listings. Converting to inches with plain division (63 divided by 25.4, 88 divided by 25.4) gives 2.48 in by 3.46 in, not the rounder "2.5 x 3.5" that gets tossed around online. That 2.5 x 3.5 figure actually belongs to sports cards and playing cards (63.5x88.9mm), which run a fraction larger on both edges. It rarely matters in practice, since every sleeve on the market is cut with clearance, but it explains why a Magic card looks slightly smaller than a graded sports card slab if you ever line them up.

Card thickness matters more than most players think about. A single Magic card at 0.305mm doesn't seem like much, but it adds up fast across a 100-card Commander deck, and it's the number that decides whether a double-sleeved deck closes a deck box lid or jams it open.

What size sleeves does a Magic card need

Outer sleeves for standard-size cards run bigger than the card itself, typically landing around 66x91mm across the major brands (Dragon Shield's Matte and Classic lines, Ultimate Guard's Katana, Gamegenic's Prime, KMC's Hyper Mat). That gap between card and sleeve is what lets the card slide in without tearing the seams every time you shuffle. If you're double sleeving, an inner sleeve goes on first, and those run tighter, around 64x89mm, close enough to the card that it doesn't rattle around inside the outer sleeve.

Sleeving for tournament play vs casual decks

Tournament Magic requires opaque-backed sleeves so opponents can't mark or identify cards by feel, and most competitive players double sleeve to protect against the wear of shuffling every round. Casual and Commander decks have more room to experiment, and this is where inner sleeves plus a matte outer really pay off, since a deck gets handled more and lives outside a box for longer stretches at kitchen-table games.

Toploaders for valuable Magic cards

A raw or lightly sleeved Magic card fits a 35pt toploader, which measures 69.9x98.4mm on the inside, the thinnest and most common option for a single card headed into a mailer or a display box. Once a card is graded and slabbed, it's no longer a toploader question at all, since the slab has its own footprint, but for anything raw or in a penny sleeve, 35pt is the default starting point before you size up for thicker stock.

Quick answers

Is a Magic card exactly 2.5 x 3.5 inches? Not quite. A Magic card is 63x88mm, which converts to 2.48 x 3.46 in. The 2.5 x 3.5 figure belongs to sports and playing cards, which are cut a hair larger.

Are Magic and Pokemon cards the same size? Yes. Both use the 63x88mm standard size, so sleeves, toploaders, and binder pages are interchangeable between the two games.

What sleeve size do I need for Magic? Look for "standard size" on the packaging, not "Japanese size." Standard sleeves run around 66x91mm and are built for the 63x88mm Magic card.

Do old Magic cards measure differently than new ones? Not that our data shows. Modern printings hold to the same 63x88mm standard across sets, so gear bought today fits cards from any era of the same physical footprint.

If you're double sleeving and want to know whether a specific box will actually close on a stacked deck, don't eyeball it against the numbers above. Run the combination through the fit checker and get an actual answer instead of a guess.