OSRS Drop Calculator › Grimy torstol

Best way to farm Grimy torstol

All 25 monsters that drop Grimy torstol, ranked by realistic quantity per hour — not just drop rate. Change the seconds-per-kill for any monster to match your own speed. 4 other sources aren’t ranked; see why below.

Drop data: Grimy torstol on the OSRS Wiki

Currently fastest method
Scorpia
36 / hr
Monster Drops (rarity · quantity) Avg/kill Sec/kill Kills/hr Qty/hr
Scorpia
Combat lvl 225
5/128 · 10–15 noted
 0.488 49 73 36
Kalphite Queen
Combat lvl 333
2/126 · 25 noted
 0.397 78 46 18
Spiritual mage (Zaros)
Combat lvl 182 · Slayer 83
8.875/128 · 1
 0.069 26 138 9.6
Cerberus
Combat lvl 318 · Slayer 91
4/130 · 6 noted
 0.185 88 41 7.6
Alchemical Hydra
Combat lvl 426 · Slayer 95
1/107.7 · 10–15 noted (2 rolls)
 0.232 149 24 5.6
Phosani's Nightmare
Combat lvl 1024
4/100 · 13–26 noted
 0.78 514 7 5.5
Ancient Zygomite
Combat lvl 109 · Slayer 57
6/118 · 1
 0.051 34 106 5.4
The Nightmare
Combat lvl 814
4/100 · 1–16 noted
 0.34 386 9 3.2
Sarachnis
Combat lvl 318
6/800 · 5–10 noted
 0.056 71 51 2.9
Spiritual warrior (Zaros)
Combat lvl 158 · Slayer 68
1/68.27 · 1
 0.015 22 164 2.4
Spiritual ranger (Zaros)
Combat lvl 158 · Slayer 63
1/68.27 · 1
 0.015 24 150 2.2
Blood Reaver
Combat lvl 161–174
1/68.27 · 1
 0.015 26 138 2
Ancient Wyvern
Combat lvl 210 · Slayer 82
4/132 · 1
 0.03 66 55 1.7
Long-tailed Wyvern
Combat lvl 152 · Slayer 66
2/123 · 1
 0.016 41 88 1.4
Taloned Wyvern
Combat lvl 147 · Slayer 66
2/123 · 1
 0.016 42 86 1.4
Spitting Wyvern
Combat lvl 139 · Slayer 66
2/123 · 1
 0.016 43 84 1.4
Drake
Combat lvl 192 · Slayer 84
1/165.3 · 1–3
 0.012 47 77 0.9
Manta ray (monster)
Combat lvl 133
1/264 · 2–3
 1 per 106 kills 37 97 0.9
Hydra
Combat lvl 194 · Slayer 95
1/320 · 3 noted
 1 per 107 kills 57 63 0.6
Adamant dragon
Combat lvl 338
1/73.33 · 1
 0.014 89 40 0.6
Basilisk Knight
Combat lvl 204 · Slayer 60
1/92.44 · 1
 0.011 78 46 0.5
Stingray
Combat lvl 92
1/533.3 · 1–2
 1 per 356 kills 22 164 0.5
Rune dragon
Combat lvl 380
1/84.67 · 1
 0.012 96 38 0.4
Grimy Lizard
Combat lvl 50 · Slayer 44
1/682.67 · 1
 1 per 683 kills 18 200 0.3
Tormented Demon
Combat lvl 450
1/136 · 1
 1 per 136 kills 98 37 0.3

Other sources (not ranked)

These also drop it but aren’t included in the ranking above. The reason is shown for each.

Monster Drops (rarity · quantity) Avg/kill Why not ranked
Skotizo
Combat lvl 321
7/100 · 20 noted
 1.4 Needs a dark totem (3 pieces from Catacombs monsters) for every kill
Guardian Drake
Combat lvl 376 · Slayer 84
1/165.3 · 1–3 (3 rolls)
 0.036 Superior: only appears randomly (~1 in 200 kills) while on a slayer task
Basilisk Sentinel
Combat lvl 358 · Slayer 60
1/92.44 · 1 (3 rolls)
 0.032 Superior: only appears randomly (~1 in 200 kills) while on a slayer task
Colossal Hydra
Combat lvl 309 · Slayer 95
1/320 · 3 noted (3 rolls)
 0.028 Superior: only appears randomly (~1 in 200 kills) while on a slayer task
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.