Shulker Box & Storage Calculator

Minecraft Java & Bedrock 1.21

Enter your total block count to calculate Shulker Boxes, chests, and smelting time.

Shulker Box & Chest Breakdown for 17,280 Items

Convert large item counts into full Shulker Boxes (1,728 items), remaining stacks, double chests, and furnace fuel.

10
Full Shulker Boxes (1,728 items)
270
Total Stacks (64 items)
2160
Coal Needed to Smelt

Questions & reference

How do I convert Nether portal coordinates?

From the Overworld to the Nether, divide X and Z by eight and round down. In the reverse direction, multiply them by eight. The calculator shows the selected direction.

Should I divide the Y coordinate by eight?

No. Height is not scaled. Choose a safe height yourself: coordinate conversion does not check lava, empty space, or terrain.

Does this guarantee that two portals will link?

No. Nearby portals and the game’s search rules can affect linking. This is a coordinate conversion, not a simulation of every portal in your world.