Nether Portal Calculator
Calculate Nether coordinates from Overworld coordinates (or vice versa) in Minecraft. The Nether is 8x smaller than the Overworld.
How to Use This Calculator
- Enter the X and Z coordinates from one dimension (Overworld or Nether).
- Select conversion direction (Overworld → Nether or Nether → Overworld).
- The calculator displays the corresponding coordinates in the other dimension.
- Use these coordinates to build portals that link correctly.
Nether Coordinate Conversion Formula
The Nether is 8× smaller than the Overworld, so coordinates are scaled:
Nether → Overworld: Overworld = Nether × 8
Example: Overworld (1000, -500) → Nether (125, -63). Nether (100, 50) → Overworld (800, 400). Note: Coordinates are rounded/floored to integers for block positions. This 8:1 ratio allows fast travel—walking 1 block in Nether equals 8 blocks in Overworld.
Full Description
The Nether is a dimension in Minecraft that's 8× smaller than the Overworld. This means 1 block traveled in the Nether equals 8 blocks in the Overworld, making it useful for fast travel. However, this size difference means coordinates don't match between dimensions. To build Nether portals that link correctly, you need to convert coordinates.
When you build a portal in the Overworld, the game searches for a portal in the Nether at coordinates divided by 8. If you build a portal in the Nether, it searches for a portal in the Overworld at coordinates multiplied by 8. To ensure portals link correctly, build them at the calculated coordinates. This is especially important for creating Nether highways and fast travel networks.
This calculator helps you convert coordinates between Overworld and Nether. Enter coordinates from one dimension, select the conversion direction, and it calculates the corresponding coordinates. Use it to build linked portals, create Nether highways, plan fast travel routes, or understand the coordinate relationship. Proper portal linking is essential for efficient Nether travel!
Frequently Asked Questions
How does Nether coordinate conversion work?
The Nether is 8× smaller than the Overworld. To convert Overworld → Nether: divide coordinates by 8. To convert Nether → Overworld: multiply coordinates by 8. This allows fast travel—1 block in Nether = 8 blocks in Overworld.
Why do I need this calculator?
When building Nether portals, you want them to link correctly. If you build a portal in Overworld at (1000, -500), the corresponding Nether portal should be at (125, -63) to link properly. This calculator finds the correct coordinates.
Do Y coordinates matter?
Y coordinates (height) don't affect portal linking in the same way. Portals link based on X and Z coordinates. However, Nether portals generate between Y=32 and Y=128. For best results, build portals at similar Y levels in both dimensions.
What if my portals don't link?
If portals don't link correctly, check coordinates. The Nether portal should be at (Overworld X/8, Overworld Z/8). If there's already a portal nearby, it may link to that instead. Destroy the old portal or build at the exact calculated coordinates.