What is the Nether coordinate ratio in Minecraft?

In Minecraft, the Nether uses a coordinate scale that is 1/8th of the Overworld. This means 1 block traveled in the Nether equals 8 blocks in the Overworld. To convert Overworld coordinates to Nether coordinates, divide the X and Z values by 8. The Y coordinate does not scale.

Why won't my Nether portal link correctly?

Portal linking issues usually occur because there is another portal within the search radius. In the Overworld, this is 128 blocks; in the Nether, it is 16 blocks. If another portal exists within that range, the game may link to the wrong one. Also ensure your coordinates are mathematically correct using this calculator.

Does this calculator work for Minecraft Java Edition and Bedrock?

Yes. The 8:1 coordinate ratio applies to both Java Edition and Bedrock Edition. The conversion math is identical across both versions of Minecraft.

What Y coordinate should I build my Nether portal at?

For best results, build your Nether portal between Y=15 and Y=100 to avoid the lava ocean at the bottom and the Nether ceiling. Many players prefer Y=64 (sea level equivalent) or build on top of the Nether roof at Y=128 in Java Edition for a safe highway system.

How do I use the Nether for fast travel?

Build a portal at your starting location, enter the Nether, build another portal at the Nether coordinates that correspond to your destination (using this calculator), then exit. You will emerge at your destination in the Overworld, having traveled 8x further than your distance in the Nether.

Can ghasts destroy my Nether portal?

Yes, ghast fireballs can break the fire inside a Nether portal (deactivating it) and can also destroy the frame if built with non-obsidian materials. Always build your portal frame with obsidian, and consider surrounding the area with blast-resistant materials like cobblestone to protect it.

🟣

Nether Portal Calculator

Convert Minecraft Overworld coordinates to Nether Portal coordinates and back. Calculate optimal portal placement for fast travel.

Minecraft Coordinate Converter

Overworld Coordinates

Nether Portal Coordinates