OSRS Drop Calculator › Aether catalyst

Best way to farm Aether catalyst

All 5 monsters that drop Aether catalyst, ranked by realistic quantity per hour — not just drop rate. Change the seconds-per-kill for any monster to match your own speed.

Drop data: Aether catalyst on the OSRS Wiki

Currently fastest method
Yama (Contract)
12,565 / hr
Monster Drops (rarity · quantity) Avg/kill Sec/kill Kills/hr Qty/hr
Yama (Contract)
Combat lvl 1238
Always · 2,000
 2,000 573 6 12,565
Doom of Mokhaiotl
Combat lvl 558–908
5/104 · 151–400
 13.24 73 49 653
The Leviathan
Combat lvl 593–1157
1/100 · 1,500–2,250
 18.75 146 25 462
Yama
Combat lvl 1238
7/95.11 · 850
 62.56 573 6 393
Abyssal Sire
Combat lvl 350 · Slayer 85
2/139 · 220–270
 3.53 117 31 108
How this is calculated: items/hr = (3600 ÷ seconds per kill) × average items per kill. Each monster's drop lines are listed as the wiki shows them (rarity · quantity); the average adds them all up, each as rarity × average quantity × rolls — so a guaranteed drop plus a rarer bonus drop both count. Drop rates and quantities come from the OSRS Wiki's community-verified drop tables. Seconds-per-kill is an editable estimate based on each monster's hitpoints and defence — your real speed depends on your stats and gear, so adjust it and your edits are remembered on this device. Rates marked ~ are approximate on the wiki.