Nether Calculator by NBK Devs

This extension is a small toolbar calculator for horizontal coordinates when linking nether portals in Minecraft: overworld to nether divides X and Z by eight using floor division; nether to overworld multiplies X and Z by eight. Y can be entered for reference but is not scaled.

The popup runs on your device. It does not send coordinates to a server for the calculation and does not require broad website access.

Not affiliated with Mojang AB or Microsoft. Minecraft is a trademark of Mojang Synergies AB.

FEATURES (bullets)
• Choose direction: overworld → nether or nether → overworld
• Uses floor division on X/Z for overworld → nether
• Optional Y field (display only)
• Copy result lines from the popup
• Works offline for the math after installation