Minecraft Fortune Calculator
Editions: Java (Bedrock not modeled — see FAQ) · Verified: Java 26.3 · 2026-10-10
Pick a block and a Fortune level to see what one block drops on average, every count it can drop with the odds of each, and what a whole vein or field adds up to. The rules come from the loot tables inside Java 26.3, checked block by block against a second calculator. The figure most players get wrong: Fortune III averages 2.2 diamonds per ore, not 4, because a single diamond is twice as likely as any other result.
Drops per block
Every count one block can give
The chosen block at the chosen level: every count one block can give.
| Items | Chance | This many or more |
|---|
This block at each level
| Level | Average per block | Gain over none | One block gives |
|---|
Every block at a glance
Average items per block at each level, in Java 26.3 (verified 2026-10-10). The base is what the block drops before Fortune; the rule is what Fortune does to it.
| Block | Drops | Base | Rule | None | I | II | III |
|---|---|---|---|---|---|---|---|
| Coal ore | coal | 1 | multiplied | 1 | 1.333 | 1.75 | 2.2 |
| Iron ore | raw iron | 1 | multiplied | 1 | 1.333 | 1.75 | 2.2 |
| Copper ore | raw copper | 2 to 5 | multiplied | 3.5 | 4.667 | 6.125 | 7.7 |
| Gold ore | raw gold | 1 | multiplied | 1 | 1.333 | 1.75 | 2.2 |
| Lapis lazuli ore | lapis lazuli | 4 to 9 | multiplied | 6.5 | 8.667 | 11.375 | 14.3 |
| Diamond ore | diamonds | 1 | multiplied | 1 | 1.333 | 1.75 | 2.2 |
| Emerald ore | emeralds | 1 | multiplied | 1 | 1.333 | 1.75 | 2.2 |
| Nether quartz ore | Nether quartz | 1 | multiplied | 1 | 1.333 | 1.75 | 2.2 |
| Amethyst cluster | amethyst shards | 4 | multiplied | 4 | 5.333 | 7 | 8.8 |
| Redstone ore | redstone dust | 4 to 5 | +0 to level | 4.5 | 5 | 5.5 | 6 |
| Glowstone | glowstone dust | 2 to 4 | +0 to level, at most 4 | 3 | 3.333 | 3.556 | 3.667 |
| Melon | melon slices | 3 to 7 | +0 to level, at most 9 | 5 | 5.5 | 6 | 6.45 |
| Nether wart, fully grown | Nether wart | 2 to 4 | +0 to level | 3 | 3.5 | 4 | 4.5 |
| Wheat, fully grown | wheat seeds | 1, and 1 wheat | extra seeds | 2.714 | 3.286 | 3.857 | 4.429 |
| Beetroots, fully grown | beetroot seeds | 1, and 1 beetroot | extra seeds | 2.714 | 3.286 | 3.857 | 4.429 |
| Gravel | flint | 1 | chance | 0.1 | 0.143 | 0.25 | 1 |
| Gilded blackstone | gold nuggets | 2 to 5 | chance | 0.35 | 0.5 | 0.875 | 3.5 |
The worked example
Diamond ore drops one diamond, and Fortune III multiplies it. The game draws a whole number from 0 to 4; a 0 or a 1 both mean ×1, and 2, 3 and 4 mean themselves. That makes one diamond the result 40% of the time and two, three or four diamonds 20% of the time each, so the average is (1 + 1 + 2 + 3 + 4) / 5 = 2.2, a gain of 120% where an even spread of 1 to 4 would give 2.5.
Eight diamond ore at Fortune III average 8 × 2.2 = 17.6 diamonds and can give anywhere from 8 to 32. Adding the eight blocks' odds together exactly, the chance of at least 16 diamonds is 73%, and the chance that all eight roll ×1, leaving the 8 diamonds you would have had without Fortune, is 0.4 to the eighth power: about 1 in 1,526.
The multiplier applies to the whole roll, so ores that start with more gain more. Lapis lazuli ore rolls 4 to 9 before Fortune and averages 6.5 × 2.2 = 14.3 at Fortune III, with a best case of 36. Redstone ore uses the other rule and only gains 0 to 3 dust on top of its 4 or 5: from 4.5 to 6, a gain of 33.3%.
The base counts, rules and caps come from the block loot tables in the Java 26.3 server download from Mojang, and the arithmetic of each rule from the game code in the same download, read 2026-10-10. Every block offered here was checked against the fortune calculator on crafty.gg, read the same day, which gives the same base roll, rule and cap for each. The Fortune guide works through every rule.
Questions builders actually ask
How much does Fortune III increase diamond drops?
By 120% on average. Fortune III multiplies the one diamond an ore drops by 1, 2, 3 or 4, and 1 is twice as likely as each of the others: 40% for one diamond, 20% each for two, three and four. That averages 2.2 diamonds per ore. Coal, iron, gold, emerald and Nether quartz ore follow the same rule.
Why does Fortune add so little to redstone and glowstone?
They use a different rule. Instead of multiplying the drop, Fortune adds 0 up to its level on top of it, worth half an item per level on average, so redstone ore goes from 4.5 dust to 6 at Fortune III. Glowstone also never drops more than 4 dust, so Fortune III raises its average only from 3 to 3.667.
Does Fortune work on crops?
On fully grown wheat and beetroots it adds seeds: the crop makes 3 tries plus one per Fortune level, each worth a seed with chance 0.5714286, on top of one seed and the crop itself. That is about 0.571 more seeds per level. Carrots and potatoes are left out of this tool because its two sources disagree on their base count, although both say Fortune adds the same 0.571 a level.
Can a tool have both Fortune and Silk Touch?
No. The two enchantments exclude each other, so an anvil will not combine them, and Silk Touch makes an ore drop the ore block itself instead of the items Fortune works on. Fortune goes on pickaxes, axes, shovels and hoes, up to level III.
Does Fortune III always give flint from gravel?
Yes. Gravel drops flint with chance 10% without Fortune, 14.3% at Fortune I, 25% at Fortune II and 100% at Fortune III, and drops itself the rest of the time. Gilded blackstone uses the same four chances for its 2 to 5 gold nuggets.
Does this match Bedrock Edition?
It is not checked for Bedrock. The rules here come from Java 26.3's loot tables, and the Bedrock sample packs Mojang publishes hold no loot tables for these blocks, so there is nothing to check a Bedrock figure against. The calculator models Java only.