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Minecraft Stack Calculator

A stack is 64 items for most blocks, 16 for items like ender pearls, eggs, and signs, and 1 for tools, armor, and potions. So 128 blocks is 2 stacks. Enter any amount to see stacks, leftover items, slots, shulker boxes, and double chests.

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items

Stack size

Stacks of 64: Blocks, ores, food

Stacks needed

9

9 full stacks of 64

Total items
576
Inventory slots used
9
Shulker boxes (27 slots)
1 (9 of 27 slots in 1 box)
Double chests (54 slots)
1

Quick amounts

How it fills a container

Shulker Box

9 of 27 slots used1 shulker box total

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How many stacks is it?

Common block counts at 64 per stack, with the inventory slots and shulker boxes they need. A partial stack still takes a full slot.

Minecraft item counts converted to stacks of 64, slots, and shulker boxes
ItemsStacks of 64SlotsShulker boxes
641 stack11 of 27 slots in 1 box
1001 stack + 3622 of 27 slots in 1 box
1282 stacks22 of 27 slots in 1 box
164full beacon2 stacks + 3633 of 27 slots in 1 box
1923 stacks33 of 27 slots in 1 box
2003 stacks + 844 of 27 slots in 1 box
2564 stacks44 of 27 slots in 1 box
3004 stacks + 4455 of 27 slots in 1 box
5007 stacks + 5288 of 27 slots in 1 box
5769 stacks99 of 27 slots in 1 box
1,00015 stacks + 401616 of 27 slots in 1 box
1,72827 stacks271 full box
2,00031 stacks + 16321 full box + 5 slots
2,30436 stacks361 full box + 9 slots
3,45654 stacks542 full boxes
5,00078 stacks + 8792 full boxes + 25 slots
10,000156 stacks + 161575 full boxes + 22 slots

Stack size reference

Most blocks/items
64
Ender pearls, eggs, signs, buckets
16
Tools, armor, potions
1
Shulker box capacity
27 slots
Inventory slots
36 (+ 1 offhand)
Double chest capacity
54 slots

How stacking works in Minecraft

The basics of item storage and inventory math.

A stack of blocks in Minecraft is 64 blocks, and one stack fills one inventory slot. Ender pearls, snowballs, eggs, signs, and empty buckets stack to 16. Tools, weapons, armor, potions, and boats do not stack at all.

To calculate stacks: divide the total number of items by 64. Full stacks = floor(items ÷ 64). Leftover items = items mod 64. For example, 200 cobblestone blocks equals 3 full stacks plus 8 leftover blocks, which takes 4 slots. For shulker boxes, divide the slots by 27 and round up.

If you need 3,000 cobblestone blocks for a build, that is 46 stacks plus 56 extra items, which fits in two shulker boxes (47 of 54 slots). Stack sizes and container slots were checked against the Minecraft Wiki on September 24, 2026.

Minecraft stacking FAQ

Common questions about item stacks and storage.

Most blocks and items stack to 64. Ender pearls, snowballs, eggs, signs, banners, honey bottles, and empty buckets stack to 16. Tools, weapons, armor, potions, and boats do not stack, so each one takes a full slot.
128 blocks is exactly 2 stacks of 64, with nothing left over. It takes 2 inventory slots.
100 blocks is 1 stack of 64 plus 36 blocks, so it uses 2 inventory slots.
500 blocks is 7 stacks of 64 plus 52 blocks. That is 8 slots, which fits in one shulker box with 19 slots free.
1,000 blocks is 15 stacks of 64 plus 40 blocks. That uses 16 slots, so it fits in one shulker box (27 slots).
A shulker box has 27 slots, so it holds 27 stacks. That is 1,728 items that stack to 64, or 432 items that stack to 16. Shulker boxes keep their contents when broken, but one shulker box cannot go inside another.
A double chest has 54 slots, so it holds 3,456 items that stack to 64 (54 × 64). Filled with full shulker boxes, a double chest holds 93,312 items (54 × 27 × 64).
A full 4-layer beacon pyramid uses 164 blocks (9 + 25 + 49 + 81), which is 2 stacks of 64 plus 36 blocks. If you craft the blocks from ingots, that is 1,476 ingots (164 × 9), or 23 stacks plus 4.
2,304 items is exactly 36 stacks of 64. That fills all 36 main inventory slots (27 storage slots plus the 9-slot hotbar).
576 items is exactly 9 stacks of 64. It is also the number of diamonds in a stack of 64 diamond blocks, since each block takes 9 diamonds.
Ender pearls, snowballs, eggs, signs, banners, honey bottles, and empty buckets stack to 16. Armor stands stack to 16 in Java Edition and 64 in Bedrock Edition.
A bundle holds one slot's worth of items: 64 of an item that stacks to 64, or 16 of an item that stacks to 16. Items can be mixed, and each one uses its share of that space. Bundles have been craftable in Java Edition survival since 1.21.2.
Divide the item count by the stack size (64, or 16 for small-stack items). The whole number is your full stacks and the remainder is the leftover items. For example, 200 ÷ 64 gives 3 full stacks with 8 items left, which takes 4 slots.

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