Linked portals turn the Nether into a fast-travel network. When two portals pair correctly, walking through one always emerges at the other — ideal for hubs, bases, and long-distance routes.
Java Edition uses an 8:1 horizontal scale: one block in the Nether equals eight blocks in the Overworld on X and Z.
Convert coords instantly — use the Nether Coords tool to translate Overworld ↔ Nether positions and copy X Y Z for chat or planning.
Section 01
The 8:1 ratio
- Overworld → Nether: divide X and Z by 8 (Y stays roughly the height you choose for safety).
- Nether → Overworld: multiply X and Z by 8.
Example: Overworld 800 64 1600 maps to about Nether 100 64 200.
Nether X = Overworld X ÷ 8
Nether Z = Overworld Z ÷ 8
Overworld X = Nether X × 8
Overworld Z = Nether Z × 8Section 02
Link portals step by step
- Stand at your Overworld portal (or planned frame) and note X Y Z.
- Convert X/Z with the 8:1 ratio (or the Nether Coords tool).
- Travel to those Nether coordinates and build the return portal frame there.
- Light the Nether portal, walk through, and confirm you exit at the Overworld frame.
- If you emerge elsewhere, compare distances to nearby portals and adjust or remove the conflicting pair.
Build both sides intentionally. Letting the game auto-create the exit often places a new portal somewhere close — but not at your planned hub.
Section 03
Ideal search range
Minecraft looks for existing portals within a search radius when you enter one. As a practical rule of thumb, keep linked pairs within about 128 Overworld blocks (16 Nether blocks) of the scaled target so they prefer each other over neighbours.
Dense portal areas (spawn hubs, shopping districts) need tighter coordinate discipline — small X/Z errors multiply by 8 in the Overworld.
Section 04
Common mistakes
- Converting Y by 8 — horizontal axes scale; choose a safe Y deliberately.
- Leaving an old portal inside the search range that “steals” the link.
- Rounding carelessly on long-distance routes — check both directions after building.
- Building in the wrong dimension’s coordinate space after a mis-click in a calculator.
FAQ
Frequently asked questions
What is the Nether portal ratio?
In Java Edition, one block in the Nether equals eight blocks in the Overworld on the X and Z axes. Y does not scale the same way for linking math.
Why does my portal link to the wrong place?
Usually another portal is closer than your intended pair, or the calculated coords are off. Build both frames at matching scaled coordinates and remove conflicting nearby portals.