OSRS Drop Calculator › Fiendish ashes

Best way to farm Fiendish ashes

All 8 monsters that drop Fiendish ashes, ranked by realistic quantity per hour — not just drop rate. Change the seconds-per-kill for any monster to match your own speed. 2 other sources aren’t ranked; see why below.

Drop data: Fiendish ashes on the OSRS Wiki

Currently fastest method
Imp
900 / hr
Monster Drops (rarity · quantity) Avg/kill Sec/kill Kills/hr Qty/hr
Imp
Combat lvl 2–7
Always · 1
 1 4 900 900
Spawn
Combat lvl 55
Always · 1
 1 5 720 720
Pyrefiend
Combat lvl 43–48 · Slayer 30
Always · 1
 1 12 300 300
Scion
Combat lvl 93
Always · 1
 1 12 300 300
Death spawn
Combat lvl 46
Always · 1
 1 16 225 225
Pyrelord
Combat lvl 60 · Slayer 30
Always · 1
 1 19 189 189
Waterfiend
Combat lvl 115
Always · 1
 1 34 106 106
Ice demon
Always · 1
 1 60 60 60

Other sources (not ranked)

These also drop it but aren’t included in the ranking above. They’re all superior slayer monsters: they only appear randomly (~1 in 200 kills) while you’re on a slayer task.

Monster Drops (rarity · quantity) Avg/kill
Flaming pyrelord
Combat lvl 97 · Slayer 30
Always · 1
 1
Infernal pyrelord
Combat lvl 134 · Slayer 30
Always · 1
 1
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.

Something wrong on this page?

Drop rates come from the OSRS Wiki and kill times are estimates, so mistakes happen. Tell us what's off and it'll be looked at.