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Convert between items and stacks. Supports standard (64), small (16), and unstackable items. Shows shulker box counts for large quantities.
The basics of item storage and inventory math.
Minecraft groups identical items into stacks. Most blocks stack to 64, which is one inventory slot. Certain items like ender pearls and snowballs cap at 16 per stack. Tools, weapons, armor, and potions cannot stack at all.
Understanding stack math matters for large building projects. If you need 3,000 cobblestone blocks, this calculator tells you that is 46 stacks plus 56 extra items, which fits in two shulker boxes with room to spare. Knowing this before you start mining saves trips.
Common questions about item stacks and storage.
More Minecraft utilities.