Guides & Cheat Sheets

The mechanics behind the calculators, explained in plain terms — how the numbers actually work, not just what they are.

What these guides are

Each guide covers one vanilla Java Edition mechanic in depth — the formula, why it behaves the way it does, and how to work with it rather than around it. They're written to back up the calculators on this site, not replace them: read the guide to understand why a number comes out the way it does, then use the matching tool to run your own numbers.