Minecraft Block & Stack Calculator
Enter an item total and instantly convert it into full stacks, remainder, shulker boxes and double chests.
*Storage estimates assume every slot can hold the selected stack size: 27 slots per shulker and 54 per double chest.
Quick Minecraft storage reference
| Container | Slots | At 64 per stack |
|---|---|---|
| Shulker box | 27 | 1,728 items |
| Double chest | 54 | 3,456 items |
Use it with the shape generators
Copy the total from the circle generator, sphere generator or cylinder generator to plan collection and transport. If a build needs several block types, calculate each material separately rather than combining them into one stack estimate.
64-stack, 16-stack and non-stackable items
The selected stack size changes both the number of full stacks and the storage estimate. Use 64 for normal full-stack items, 16 for items with a 16-item limit, and 1 for non-stackable items. The calculator does not try to guess an item's stack size for you.
Read the stacks and storage capacity guide for planning large material runs.
Frequently asked questions
How many items fit in a full shulker box?
A shulker box has 27 slots. With 64-item stacks, that is 1,728 items when every slot is full.
How many items fit in a double chest?
A double chest has 54 slots. With 64-item stacks, that is 3,456 items when every slot is full.
Why can I select a 16-item stack size?
Some Minecraft items stack to 16 rather than 64. The calculator uses the selected stack size for stacks and storage estimates.