Minecraft Mob Farm Calculator
Estimate spawn rates, XP / hour, and loot output for an Overworld, Nether, End, or spawner-based mob farm.
Farm configuration
Platform width
Platform length
Number of layers
Looting enchantment
Filter by mob
Spawn area324 blocks
Est. spawns/hour~11,664
XP & efficiency
XP per hour
58,320
Level 30s / hour
~41.8
Mob breakdown
Zombie24.1% spawn rate
per hour~2,811
XP per hour14,055
Skeleton24.1% spawn rate
per hour~2,811
XP per hour14,055
Spider24.1% spawn rate
per hour~2,811
XP per hour14,055
Creeper24.1% spawn rate
per hour~2,811
XP per hour14,055
Enderman2.4% spawn rate
per hour~280
XP per hour1,400
Witch1.2% spawn rate
per hour~140
XP per hour700
Loot per hour
Gunpowder
~2,916
per hour
Rotten Flesh
~2,811
per hour
Bone
~2,811
per hour
Arrow
~2,811
per hour
String
~2,811
per hour
Spider Eye
~569
per hour
Ender Pearl
~140
per hour
Glass Bottle
~105
per hour
Glowstone Dust
~105
per hour
Redstone
~105
per hour
Sugar
~105
per hour
Stick
~105
per hour
Iron Ingot
~70
per hour
Carrot
~70
per hour
Potato
~70
per hour
Detailed drop rates
| Mob | Drop | Per mob | per hour | Per day |
|---|---|---|---|---|
| Zombie | Rotten Flesh | 1.00 | 2,811 | 67,464 |
| Iron Ingot | 0.03 | 70 | 1,687 | |
| Carrot | 0.03 | 70 | 1,687 | |
| Potato | 0.03 | 70 | 1,687 | |
| Skeleton | Bone | 1.00 | 2,811 | 67,464 |
| Arrow | 1.00 | 2,811 | 67,464 | |
| Spider | String | 1.00 | 2,811 | 67,464 |
| Spider Eye | 0.17 | 464 | 11,132 | |
| Creeper | Gunpowder | 1.00 | 2,811 | 67,464 |
| Enderman | Ender Pearl | 0.50 | 140 | 3,360 |
| Witch | Glass Bottle | 0.75 | 105 | 2,520 |
| Glowstone Dust | 0.75 | 105 | 2,520 | |
| Gunpowder | 0.75 | 105 | 2,520 | |
| Redstone | 0.75 | 105 | 2,520 | |
| Spider Eye | 0.75 | 105 | 2,520 | |
| Sugar | 0.75 | 105 | 2,520 | |
| Stick | 0.75 | 105 | 2,520 |
Mob farm tips
Spawning mechanics
- • Mobs spawn 24–128 blocks from the player; AFK at the right distance
- • Hostile mob cap is 70 per player
- • Light level must be 0 for most hostile mobs
- • Spawn attempts happen every tick (20/s) inside the spawn radius
- • Spawners activate when a player is within 16 blocks
Optimization tips
- • Build at Y ≥ 128 — mobs despawn fastest below the AFK platform
- • Use water streams to push mobs to the kill chamber quickly
- • Carpet every roof tile — blocks other spawns near your AFK spot
- • Light up caves in a 128-block radius to free the mob cap
- • Trident killers preserve the player-kill XP bonus