End Portal Calculator
With End Portal Calculator, players who have thrown a few Eyes of Ender can estimate where the stronghold and its End portal lie without leaving the game to do the math.
What it does
The mod runs on the client only and needs Fabric. It watches the landing point of each thrown Eye of Ender and combines the throws to triangulate the portal location. Two throws give a basic intersection, and with more throws the mod switches to a least-squares fit that discards statistical outliers, so the estimate tightens as more eyes are thrown. Throws are captured automatically when an eye lands, or manually with a key press or the F3+C capture when a landing is missed.
The estimate is shown as a waypoint on vanilla's Locator Bar, labeled like a Stronghold, so it appears alongside the game's own markers rather than as a separate HUD element. A vertical beam marks the estimated spot, which helps find the digging site before the player is close enough for the bar to line up. A separate accuracy figure grades the estimate and flags throws placed too near each other to produce a dependable angle.
The mod is published under the MIT License and is open source, with source code and an issue tracker available. Files exist for Minecraft 26.2 only, and the latest Fabric file was released on 2026-08-21.
Key features
Automatic triangulation
Each landed eye adds a line of sight, and the estimate forms from the crossings of those lines as throws accumulate.
Least-squares estimate
From five or more throws the estimate is a least-squares fit that rejects outliers instead of intersecting two lines.
Locator Bar waypoint
The estimate appears as a waypoint on vanilla's Locator Bar with a Stronghold label, plus a vertical beam to mark the spot.
Accuracy figure
A figure grades the estimate and flags throws placed too near each other to produce a dependable angle.
In-game panel
A rebindable G key opens a panel with the throw list, a waypoint toggle, a configurable minimum throw gap and a single-action clear.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
How it compares
Simple Stronghold Finder is a Fabric client mod for 26.1 – 26.3 under the MIT License and is open source. Eye Cross is also a Fabric client mod under the MIT License, open source, for 26.1.2 – 26.2. Custom Skyblock Waypoint uses the CC0 1.0 Universal license and covers 26.1 – 26.2, while Simple Waypoint Mod is not open source and targets 26.2 only. Unlike these, this mod is built around eye throws to locate the stronghold.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| End Portal Calculator | Fabric | 26.2 | Client-side only | 2026-08-21 |
| Simple Stronghold Finder | Fabric | 26.1 – 26.3 | Client-side only | 2026-07-31 |
| Eye Cross | Fabric | 26.1.2 – 26.2 | Client-side only | 2026-09-19 |
| Custom Skyblock Waypoint | Fabric | 26.1 – 26.2 | Client-side only | 2026-07-29 |
| Simple Waypoint Mod | Fabric | 26.2 | Client-side only | 2026-08-03 |
Questions
Does End Portal Calculator need Fabric API?
Does the mod have to be installed on the server?
How many throws are needed for a reliable estimate?
In the catalog
End Portal Calculator is one of 36,990 Utility mods on ModsFinder, and one of 25,772 Utility mods for Fabric. 13,894 mods support Minecraft 26.2.
More from MagicClutchYT
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What the author says
Fabric mod for finding the stronghold from Eye of Ender throws. Throw a couple of eyes, it does the triangulation for you and points you at the result - no alt-tabbing to a browser calculator. Open GUI: G Toggle HUD: H Manual capture: 3+C (Vanilla)
Official listing
- Modrinth page
- modrinth.com/mod/endportalcalculator
- Owner
- MagicClutchYT
- Published
- 2026-08-21
- Updated on Modrinth
- 2026-08-21
- Facts verified
- 2026-10-15