Minecraft Coordinate Calculator
Convert between Overworld and Nether coordinates, see chunk and region positions, and measure distances — all live, all in your browser.
Dimension calculator
Overworld ↔ Nether — Java portal math (×8 / ÷8 on X and Z; Y is preserved).
Overworld
Nether
Y is not scaled. Vanilla portal generation may snap to a nearby valid block, so the exact spawn point can differ by a few units.
Technical calculator
Block → chunk section + chunk-local + region (with the Anvil filename).
Block coordinates
The integer coordinates Minecraft uses internally — same as your F3 readout.
16×16×16 sections. Each chunk has 24 of these stacked vertically (Y −64 to 320).
Position relative to the chunk's NW-bottom corner (always 0–15).
32×32 chunks per region (512×512 blocks). Stored on disk as the file below.
3D distance
Pythagoras for travel planning, plus the path-style metrics.
From
To
Euclidean
141.42 m
Horizontal
141.42 m
Manhattan
200 blocks
Chebyshev
100 blocks
How it works
In Java Edition, the Nether is 8× smaller than the Overworld on the X and Z axes — Y stays the same. So one block traveled in the Nether equals eight in the Overworld.
When you build a portal in the Overworld at (X, Y, Z), the matching portal in the Nether is at (X÷8, Y, Z÷8), rounded down. Conversely, a Nether portal at (X, Y, Z) maps to (X×8, Y, Z×8) in the Overworld.
The world is split into 16×16 chunks, and 32×32 chunks make up a region (saved on disk as r.X.Z.mca). Use the technical calculator to find which file your build lives in, or which chunk to /forceload.
Distance metrics: Euclidean is the straight line you fly, horizontal ignores height for ground travel, Manhattan counts axis-only steps, Chebyshev counts diagonal steps.