How Nether portal coordinates work
The Nether is a compressed copy of the Overworld. Every block you walk in the Nether covers eight blocks in the Overworld along X and Z. That's what makes Nether travel fast, and it's also why portals sometimes link somewhere unexpected: the game converts your position, then looks for the nearest portal to that converted spot.
If you build the second portal at the exact converted coordinates yourself, the two link reliably in both directions. This calculator gives you those coordinates.
The formula
Nether → Overworld: X × 8, Z × 8, Y unchanged
Results are rounded down to whole blocks, the same way the game numbers blocks (so −80.5 becomes −81).
Example: linking a base at X 1200, Z −640
| Step | Result |
|---|---|
| X: 1200 ÷ 8 | 150 |
| Z: −640 ÷ 8 | −80 |
| Y | Keep around 70 (any height from 1 to 122 in the Nether) |
| Distance from spawn | About 1,360 blocks in the Overworld, 170 in the Nether |
Tips for clean portal links
- Build both ends yourself. Letting the game generate the return portal is what causes most mislinks, because it may place it far from where you'd like.
- Keep portals spread out. In the Overworld, portals closer than about 128 blocks (on Java) can grab each other's links. Space bases far apart or match their Nether portals carefully.
- Make a Nether hub. Many players build a tunnel network at the Nether roof level or around Y 15 with one portal per base, so every trip is a short walk.
- Mind the height. If two portals are close horizontally, the game picks the one nearest in 3D, so a big height difference can steer the link.
Frequently asked questions
How do Nether coordinates work in Minecraft?
One block in the Nether equals eight blocks in the Overworld horizontally. To find the Nether spot for an Overworld location, divide X and Z by 8. To go the other way, multiply by 8. The Y coordinate (height) is not scaled.
Does the Y level matter when linking portals?
Y isn't divided by 8, but it still matters for linking. The game searches for an existing portal near the target X and Z across the whole height range and picks the closest one in 3D distance, so building at a similar height helps avoid links to the wrong portal.
Why did my portal link to the wrong place?
The game looks for the nearest existing portal within a search area around the target spot: 128 blocks in each direction in the Overworld and 16 in the Nether (Java Edition). If another portal is closer than the one you meant, it links there. Build the Nether-side portal at the exact converted coordinates to force the link.
Is it the same on Bedrock and Java?
Yes, the 8:1 ratio is the same on both. The portal search distances differ slightly between editions, but converting coordinates and building at the exact spot works on both.
How do I see my coordinates?
On Java Edition press F3 and read the XYZ line. On Bedrock, turn on Show Coordinates in the world settings, and they appear in the top left corner.
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