Nether Portal Calculator and Minecraft Coordinate Converter

How to Use the Coordinate Converter

1. Find your coordinates. In Java Edition, press F3 and read the Block numbers. In Bedrock Edition, turn on Show Coordinates.
2. Type them in. Enter X and Z separated by a comma, such as "1600, -800". If you paste X, Y and Z, the converter ignores the height.
3. Choose the dimension. Pick Overworld or Nether coordinates to match the dimension you read them in.
4. Read the results. The Nether line (or the Overworld line, for Nether input) shows where your linked portal belongs.
5. Copy what you need. Use the Copy block coordinates, Copy nether coordinates or Copy /tp button.

How to Convert Overworld Coordinates to Nether Coordinates

To convert Overworld coordinates to Nether coordinates, divide X and Z by 8 and round down, the same way the game does. Going back is simpler: multiply the Nether X and Z by 8, which is all a Nether to Overworld calculator does. This 1:8 Nether to Overworld ratio applies only to X and Z, so Y stays the same in both directions. The formula is Nether = (floor(X ÷ 8), Y, floor(Z ÷ 8)) and Overworld = (X × 8, Y, Z × 8) (Minecraft Wiki). "Round down" means moving to the lower whole number, so negative results move away from zero:

So every Overworld position from 0, 0 to 7, 7 lands on Nether 0, 0. Each block you walk in the Nether covers 8 blocks of Overworld distance, which makes a Nether tunnel between two portals a fast way to travel.

How to Link Nether Portals

Portal linking depends on where you build the second portal, so build it at the converted coordinates. The game searches for an existing portal near that spot, so you don't need the exact block, but building close keeps a different portal from being picked first.

1. Stand in your Overworld portal and note its X, Y and Z.
2. Enter X and Z into the converter with Overworld selected, and note the Nether result.
3. Go through the portal, travel in the Nether to those X and Z coordinates, and keep the same Y if you can.
4. Build and light a new portal there.
5. Walk back through it to check that you come out of your original Overworld portal.

In Java Edition, the game looks for an existing portal within a 128-block radius of the converted point in the Overworld and 16 blocks in the Nether. Bedrock Edition searches 128 blocks in both dimensions (Minecraft Wiki). If the game finds no portal, it creates a new one.

Building the Portal Frame

A Nether portal is a vertical obsidian frame at least 4 blocks wide and 5 blocks tall, and it can be as large as 23 × 23. The corners are optional, so the smallest frame takes 10 obsidian, or 14 with corners. Light the inside with flint and steel or a fire charge (Minecraft Wiki).

Why a Portal Links to the Wrong Place

A portal links to the wrong place when another portal is closer to the converted coordinates than the one you meant. Two Overworld portals built close together convert to almost the same Nether spot, so both can link to one Nether portal. In the other direction, the 128-block Overworld search can send a Nether portal to an older Overworld portal nearby. Build each portal at its own converted position, check Y as well as X and Z, and break old portals you no longer use.

Block, Chunk and Region Coordinates Explained

You can describe the same position in blocks, chunks or regions, and the converter shows all three.

Rounding down works as it does for the Nether, so block -1 is in chunk -1, not chunk 0. Position in chunk (0 to 15) shows where the block sits inside its chunk, which helps you line up farms or slime chunk builds with chunk borders. Java Edition saves each region as a file named r.X.Z.mca in the Anvil format (Minecraft Wiki), so the region file tells you what to back up, copy or reset when you work on part of a world.

Our Test Results

How we tested it: In November 2026, we typed these positions into the converter in Chrome and recorded what it showed. The chunk, position in chunk and region values all match the round-down rule above.

For the dimension change, Overworld 1600, -800 converted to Nether 200, -100, and Nether 13, -25 and -12, 1 converted to Overworld 104, -200 and -96, 8. Typing "100, 64, -200" gave the same result as "100, -200".

How to Find Your Coordinates in Minecraft

Java Edition: Press F3. The debug screen shows your block position and your position inside the current chunk (Minecraft Wiki). Bedrock Edition: Turn on Show Coordinates in the world settings, or run /gamerule showcoordinates true. Your position appears in the top-left corner. X increases to the east, Z increases to the south, and Y is height. Coordinates you copy from our seed map are block coordinates, so you can paste them straight into the converter.

How to Use the /tp Command

The converter writes the command as /tp @s X ~ Z. The ~ keeps your current height, so only X and Z change. Paste it into chat in a world with cheats on. Without cheats, walk until the X and Z on your F3 screen or Show Coordinates display match.

Coordinate Converter FAQs

Is 0, 0 in the Nether the same as 0, 0 in the Overworld?

Yes. Overworld 0, 0 divided by 8 is still 0, 0, and Nether 0, 0 multiplied by 8 is Overworld 0, 0, so the two points line up. Because the game rounds down, every Overworld position from 0, 0 to 7, 7 also converts to Nether 0, 0.

How many Nether blocks is 7,000 Overworld blocks?

7,000 Overworld blocks is 875 Nether blocks, because Nether distances on X and Z are one-eighth of Overworld distances (7,000 ÷ 8 = 875). Height doesn't change. For any trip, divide the Overworld distance by 8 to see how far you'll walk in the Nether.

Are Nether coordinates divided by 8?

Yes. Divide Overworld X and Z by 8 and round down to get Nether coordinates, and multiply Nether X and Z by 8 to get Overworld coordinates. Y never changes, so build your second portal at the same height as the first when you can.

Where are chunk coordinates on the F3 screen?

In Java Edition, press F3 and find the Chunk entry right after your block coordinates. It shows your chunk, then in brackets the chunk's position inside its region file and the file's name (Minecraft Wiki). The converter works out the same chunk and region file from your block coordinates.

Is 1 chunk 16 blocks?

Yes. A chunk is 16 blocks wide and 16 blocks long, and it runs the full height of the world. To find a block's chunk, divide its X and Z by 16 and round down: block 100 is in chunk 6, and block -1 is in chunk -1.

Why doesn't F3 show my coordinates?

Your coordinates are hidden when Reduced Debug Info is on, and some servers force that setting. In newer Java versions, you can also hide single lines of the debug screen in the debug options menu (F3 + F6), so check that the position line is switched on.

Does the converter work for Java and Bedrock?

Yes. The 8:1 Overworld to Nether ratio and the 16-block chunk are the same in both editions. Region files (r.X.Z.mca) are Java Edition only, so skip that result in Bedrock. Portal search ranges differ: Java searches 128 blocks in the Overworld and 16 in the Nether, and Bedrock searches 128 in both.

Do I need to download anything?

No. The calculator runs in your browser, with nothing to install and no account to create. Results update as you type, you can switch between Overworld and Nether coordinates at any time, and one click copies the block coordinates, Nether coordinates or /tp command.

Convert Your Coordinates Now

Type your X and Z into the calculator, choose Overworld or Nether, and copy the result you need.