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Minecraft
Tools that work a Minecraft number out for your world and your inventory, rather than explaining one in general.
What ToolGuild can help you do
Minecraft
Enchantment Order Planner
Enter your Minecraft gear and the enchanted books you own to get the cheapest anvil order, each step’s level cost and any “Too Expensive!” step. Java Edition.
Minecraft
Nether Portal Calculator
Convert Minecraft coordinates between the Overworld and the Nether both ways: the exact value, the block the game itself lands on, and what happens to Y.
How this game's data is sourced
There are two tools here, and both are real ones.
The Nether Portal Calculator converts coordinates between the Overworld and the Nether in both directions, keeps the exact answer rather than rounding it away, shows the whole block the game's own conversion lands on, explains what happens to your altitude, and measures how much shorter a trip is through the Nether. It is deliberately a coordinate calculator: where two portals actually connect depends on a search around the converted position and on portals that already exist nearby, which is a different question with a different answer.
The Enchantment Order Planner starts from the gear and the enchanted books you actually own and works out the order to combine them in an anvil — every step, what each one charges in experience levels, the worst single operation, and whether any of them would be refused with "Too Expensive!". When a different order avoids that refusal it finds it, and when none does it says so. Java Edition.
Between them they answer the two Minecraft questions that are genuinely arithmetic and genuinely worth computing rather than remembering. Nothing else is here yet, and the empty space is deliberate rather than unfinished: ToolGuild adds a Minecraft tool when it can answer a question properly, with the sources on the page, and not before.
One thing to know about the sources. Neither of these mechanics is documented first-party at the depth a calculator needs — ToolGuild looked, at the official site, at the Bedrock creator documentation and at the help centre. The facts behind both tools therefore rest on the Minecraft Wiki, and both pages say so: the provenance line reads "Community-derived" rather than borrowing an authority nothing supports. Both are also mechanics you can confirm yourself in a couple of minutes, which is exactly why ToolGuild was willing to build on them.
ToolGuild is not affiliated with, endorsed by or associated with Mojang Studios or Microsoft. Minecraft is their trademark, used here only to say which game these tools are for.