Convert coordinates between the Overworld and Nether (1:8 ratio), check portal linking radii, and visualize portal pathways.
Tip: Double-click on either map below to set X/Z coordinates
Every 1 block traveled in the Nether equals 8 blocks in the Overworld. This makes Nether highways extremely efficient for long-distance travel across your world.
Minecraft searches up to 128 blocks for an existing portal before creating a new one. Use precise coordinates to ensure your portals link correctly.
If multiple portals exist nearby, Minecraft picks the closest one using 3D Euclidean distance. Matching Y-levels helps prevent portal confusion.
A minimum portal frame is 4×5 blocks (10 obsidian). Maximum size is 23×23 blocks. The calculator above helps you build perfectly linked portal pairs.
How do I fix mismatched portals?
Destroy the incorrectly linked portal in the destination dimension. Use the calculator above to get exact coordinates, then manually build a portal at those precise coordinates.
What if my portal spawns in lava?
Minecraft will search up to 128 blocks for a safe location. If none exists, it generates an obsidian platform. You can manually move the portal to a better location afterward.
Can portals be different sizes?
Yes. Portals can be any size from 4×5 (minimum) to 23×23 (maximum). The size doesn't affect linking—only coordinates matter.
How close can Nether portals be?
In the Nether, space portals at least 16 blocks apart (128 blocks in Overworld) to prevent them from linking to the same destination. Use the calculator to plan spacing.
Do Y coordinates matter for portal linking?
Yes. Minecraft uses 3D distance when searching for portals. Keep Y coordinates similar between linked portals to avoid them connecting to the wrong destinations.
Can I build a portal in the End?
No. Nether portals only work between the Overworld and Nether dimensions. You need End portal frames to travel to the End dimension.
What happens if I break a linked portal?
Breaking a portal in one dimension doesn't affect the other. When you relight it, Minecraft will search for the existing portal on the other side and relink automatically.
Can mobs go through Nether portals?
Yes. Most mobs can use portals, including zombified piglins, which occasionally spawn near active portals in the Overworld. This can be used for mob farms or transportation.