How to use the stack calculator
Type the number of items you need and pick the stack size. The calculator shows how many full stacks that is, how many inventory slots it fills, and how many chests, double chests or shulker boxes you need to store it. The reverse calculator turns "12 stacks and 30" into a total item count — handy when trading or following a build guide.
Stack sizes in Minecraft
| Stack size | Examples |
|---|---|
| 64 | Almost all blocks, most ores and ingots, food, arrows, redstone, torches |
| 16 | Ender pearls, eggs, snowballs, signs, banners, empty buckets, honey bottles, armor stands |
| 1 | Tools, weapons, armour, potions, beds, boats, minecarts, shulker boxes, filled buckets |
Storage capacity reference
| Container | Slots | Items (64-stack) |
|---|---|---|
| Player inventory (without hotbar) | 27 | 1,728 |
| Player inventory + hotbar | 36 | 2,304 |
| Chest, barrel or shulker box | 27 | 1,728 |
| Double chest | 54 | 3,456 |
| Chest full of full shulker boxes | 27 × 27 = 729 | 46,656 |
| Double chest full of full shulker boxes | 54 × 27 = 1,458 | 93,312 |
Working out materials for a build
Every shape generator on this site gives an exact block count. Copy the number into this calculator to see how many shulker boxes to bring. For example, a hollow 31-block sphere or a large pyramid quickly runs into several shulker boxes of material.
Frequently asked questions
How many items are in a stack in Minecraft?
Most items stack to 64. Some, such as ender pearls, eggs, snowballs, signs and empty buckets, stack to 16. Tools, weapons, armour and potions don't stack (stack size 1).
How many items fit in a shulker box?
A shulker box has 27 slots, so it holds 1,728 items that stack to 64.
How many items fit in a double chest?
54 slots, which is 3,456 items that stack to 64.
Can you put a shulker box inside another shulker box?
No. But you can fill chests with full shulker boxes: a single chest of 27 full shulker boxes holds 46,656 items.