Home / Nether Portal Calculator
Minecraft Nether Portal Calculator
Type in your coordinates and get the exact Nether or Overworld twin — link portals perfectly every time.
Type in the coordinates where you want your portal and the tool calculates exactly where to build its twin on the other side.
Portal Calculator Tool
Enter Overworld or Nether coordinates — get the converted twin instantly.
How Portals Work
An 8:1 ratio — 100 Nether blocks equal 800 Overworld blocks — perfect for Nether highways.
Building a Portal
10 obsidian plus flint and steel (pour water over lava to make obsidian); the minimum frame is 4 wide by 5 tall with a 2×3 interior.
Portal Link Checker
Enter the coordinates of Portal A versus Portal B (Overworld/Nether) to check for a clash; it suggests the correct placement.
FAQ
Common questions cover landing at the wrong destination, whether to divide or multiply by 8, and how far apart Overworld portals must be.
Java & Bedrock Differences
The same 8:1 ratio, 128-block Nether search radius and 1025-block Overworld separation apply to both editions.
How Linking Works
Divide the Overworld X/Z by 8; Y stays unchanged; build both portals at the calculated coordinates.
Tips
Both portals must sit at the calculated coordinates; the game picks the closest 3D distance; keep portals well separated.
Frame Basics
Minimum interior 2×3 (4 wide x 5 tall in total); corners can be any block; building at Y64–128 gives the most room.
Collision Rules
The game searches within 128 blocks in the destination dimension; Overworld portals must be 1025+ blocks apart to avoid linking.
Portal Quick Facts
The essentials for perfect portal linking — every time.
How Portals Work
An 8:1 ratio — 100 Nether blocks equal 800 Overworld blocks — perfect for Nether highways.
Building a Portal
10 obsidian plus flint and steel (pour water over lava to make obsidian); the minimum frame is 4 wide by 5 tall with a 2×3 interior.
Portal Link Checker
Enter the coordinates of Portal A versus Portal B (Overworld/Nether) to check for a clash; it suggests the correct placement.
Java & Bedrock
The same 8:1 ratio, 128-block Nether search radius and 1025-block Overworld separation apply to both editions.
Related Finders
Explore our other Minecraft tools.
Ready to Link Your Portals?
Use the calculator above to find the perfect coordinates for your Nether portal network.
Minecraft Seeds Map is an independent, fan-made tool. It is not an official Minecraft product and is not approved by, endorsed by or connected with Mojang Studios or Microsoft. Minecraft is a trademark of Mojang Synergies AB.