Nether Coordinate Calculator

Type a position in either world and read the matching spot in the other one. Use it to link two portals so they connect the way you want, and to find the chunk and region a block sits in.

Overworld

Type here to find the Nether position that matches.

Nether

X and Z are divided by 8. The height is the same in both places.

Any of the shapes the game prints works: three numbers with spaces, commas or slashes between them. A decimal is rounded down to the block you stand on.

Ready to use

/tp @s 12 64 -32

Teleport to the matching spot in the Nether.

/tp @s 100 64 -250

Teleport back to the Overworld spot.

Where the Overworld block sits

Chunk
6, -16
block 4, 6 inside it
Region
0, -1
32 by 32 chunks
Save file
r.0.-1.mca
in the region folder

How it works

  • Type your position in the Overworld boxes, or paste the line from the F3 screen.
  • Read the Nether boxes. X and Z are divided by eight; the height stays the same.
  • Build your second portal at that position, within about 128 blocks of it, so the two link to each other.
  • Type in the Nether boxes instead to work the other way, from a Nether position out to the Overworld.
  • Copy the ready-made teleport command if you want to check the spot before you dig to it.

Eight Overworld blocks share one Nether block, so going out to the Overworld and back does not always return the number you started with. That is the game's arithmetic, not a rounding fault in the tool.

Questions

Why is the height not divided by eight?
Because only the two flat directions are compressed. One block of Nether travel covers eight blocks of Overworld travel north, south, east and west, but up and down are the same in both places. Dividing the height is the most common mistake, and it puts you inside the floor.
How do I link two portals together?
Work out the matching position with the calculator, then build the second portal there. When you walk through a portal the game looks for one within 128 blocks of the matching spot, and builds a new one only if it finds nothing. So a portal placed close to the calculated position gets used, and a portal placed far away does not.
Does this work on Bedrock as well as Java?
Yes. Both editions use the same eight to one ratio. The one exception is a Bedrock world of the Old type, which is a small legacy world size the game no longer creates.
What is a chunk, and why does the calculator show one?
A chunk is a 16 by 16 column of the world, and it is the piece the game loads, saves and generates. Chunk numbers matter when you set up a farm that needs to stay loaded, when you look up a structure, or when you talk to somebody about where something is.
What is the region file for?
The world save keeps chunks in files of 32 by 32 chunks each, named after their position. If you need to back up, copy or repair the part of a world you have built in, the region file is the one to look for.
Can I paste the coordinates straight from the game?
Yes. Copy the line from the F3 debug screen or from chat and paste it into the box. Three numbers with anything between them are read, and a decimal is rounded down to the block you are standing on.