Building a fast-travel network in Minecraft is one of the best ways to get around your world quickly. Because every 1 block traveled in the Nether equals 8 blocks traveled in the Overworld, players use Nether Portals to travel thousands of blocks in just seconds.
However, linking these portals perfectly requires some annoying math. If your coordinates are off, you might end up spawning a new portal inside a lava lake or a random cave!
To make your life easier, we created the Orbit Nether Portal Calculator. It instantly converts your Overworld coordinates to Nether coordinates (and vice versa) so you can link your portals flawlessly every single time.
Minecraft Portal Calculator
*The Y (height) coordinate is not strictly converted by the 1:8 ratio, but matching the Y level in both dimensions helps prevent the game from generating duplicate portals.
How to Use the Portal Calculator
Select the Direction: Choose whether you are converting from the Overworld to the Nether or from the Nether to the Overworld using the dropdown menu.
Enter Coordinates: Open your game and press F3 (on Java Edition) or turn on “Show Coordinates” (on Bedrock Edition). Type your X, Y, and Z coordinates into the calculator boxes.
Get the Result: The calculator will instantly display the exact coordinates where you need to build your connecting portal in the other dimension.
The Math Behind Minecraft Portals
The mechanics of Minecraft portal linking run on a strict 1:8 ratio.
Overworld to Nether: You divide the X and Z coordinates by 8. (For example, if your Overworld portal is at X: 800, Z: -400, your Nether portal should be built at X: 100, Z: -50).
Nether to Overworld: You multiply the X and Z coordinates by 8.
What about the Y coordinate (Height)? The Y coordinate does not strictly follow the multiply/divide rule. However, the game tries to find the closest portal in 3D space. To guarantee that your portals link perfectly and don’t accidentally create a new portal inside a cave, it is highly recommended to build your linked portal at the exact same Y (height) level in both dimensions.