Nether Portal Calculator

The first number on the F3 "Facing" line, in degrees.
Nether X
10
Minecraft Calculator
Nether Z
20
Overworld X
80
Overworld Z
160
Tool used
nether-portal
Worked out from Minecraft Wiki: The Nether - coordinate conversion and 3 other sources.
The 8:1 ratio applies to X and Z only. Y is the same in both dimensions.
Round the Nether coordinates to whole blocks when you build the portal; a portal links to any existing portal within the search radius.

How this is worked out

2 steps
  1. Nether X = Overworld X / 8 = 80 / 8 = 10
  2. Nether Z = Overworld Z / 8 = 160 / 8 = 20

Results are general information, not financial, tax, legal, medical or engineering advice.