Free · Count inventory slots

Minecraft Stack Calculator for Kids

Turn any item count into full stacks, extra items, and the number of inventory slots needed.

  • Clear, kid-friendly steps
  • Private in your browser
  • No signup

Inventory helper

Count your stacks

Local Java 1.21.11 facts. Unofficial and not connected with Mojang or Microsoft.

Stone stacks to 64

4 inventory slots

200=3 full stacks+8 extra

The last slot holds 8 items.

Powered by minecraft-data (curated local subset), an open-source library available under MIT.

Three simple steps

How to use it

  1. Pick a block, item, mob, biome, recipe, or question.
  2. Read the big result and compare the simple facts.
  3. Try another choice. Everything works locally with no game login.

Private by default

Your words and choices stay in this browser tab. There are no accounts, uploads, ads, or trackers inside the tool. Close the tab and the working data is gone.