Loading the map…
Quick answer: Coal is the most common ore in Minecraft, spawning from Y 320 down to Y 0 and peaking around Y 96 — especially across mountains. This Coal Finder marks coal ore from your seed on a visual map at 85% accuracy on Java 26.2.
Coal generates throughout the upper world from Y 320 down to Y 0 and is the most abundant ore in the game. It is densest at higher altitudes — exposed mountainsides are covered in it — and tapers off below sea level. The finder marks the chunks most likely to expose a coal vein on a map of your world.
The best Y level for coal is around Y 96, and higher still in mountain biomes where huge coal veins generate near the surface. Because coal is so common you rarely need to mine for it specifically — but when you do, the upper Y levels and mountain slopes are fastest.
Coal is common enough that most players pick it up while mining for other ores, but a coal finder is handy for an early-game fuel run or for hunting the big mountain veins. Set your seed above and the map marks the richest nearby coal chunks.
| Ore | Best Y level | Spawn range | Java accuracy | Bedrock accuracy |
|---|---|---|---|---|
| Coal | Y 96 |
| Y 320 to 0 |
| 85% |
| — |
Accuracy is the share of marked hotspots that really contain the ore in your world, shown as a plain number.
Y-levels, drop rates, smelting and recipes for Coal — straight from our Minecraft catalog, in both editions.
The Ore Finder reproduces Minecraft's own ore-placement maths from your world seed, entirely in your browser. It runs the same ore-distribution and cave-carving steps the game uses, then marks the chunks where diamonds, netherite and other ores are most likely to be exposed. Nothing is uploaded – your seed never leaves your device.
Where an ore ends up depends on the exact terrain and caves Minecraft carves around it, and no in-browser tool can rebuild every block the game places. We reproduce that terrain very closely, so a hotspot marked with a high percentage really contains the ore in your world around 85–91% of the time. A few spots may have been carved away by a cave or shifted slightly, so treat the markers as very strong leads rather than a guarantee.
In the Overworld it finds diamond, iron, copper, gold, redstone, lapis lazuli and coal, and in the Nether it finds ancient debris (netherite). You search one ore at a time and can optionally limit the search to a specific Y level.
Diamonds get more common the deeper you dig, peaking around Y -59 in current versions (they generate between Y -64 and Y 16). The finder defaults to each ore's full spawn range, and you can tick 'limit to a specific Y level' to focus on the richest band – for diamonds, around Y -59 to -54.
It works on both Java and Bedrock Edition. On Java it covers modern versions, including 1.21 and the 26.x releases, which share the same ore-generation rules. Bedrock Edition is now supported as well – on 1.18 and newer it finds the Overworld ores (diamond, iron, copper, gold, redstone and lapis lazuli). The two editions use different world generators, so make sure you pick the edition your world was created in.
That is up to how you like to play. In single-player it is just a faster version of strip-mining for a diamond start. On multiplayer servers, check the rules first – some servers don't allow seed-based tools.
Diamond finder
Ancient Debris (Netherite) finder
Iron finder
Gold finder
Redstone finder
Copper finder
Lapis Lazuli finder