How to Link Nether Portals in Minecraft (8:1 Ratio)

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.

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 × 8

Section 02

Link portals step by step

1. Stand at your Overworld portal (or planned frame) and note X Y Z.
2. Convert X/Z with the 8:1 ratio (or the Nether Coords tool).
3. Travel to those Nether coordinates and build the return portal frame there.
4. Light the Nether portal, walk through, and confirm you exit at the Overworld frame.
5. If you emerge elsewhere, compare distances to nearby portals and adjust or remove the conflicting pair.

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