OSRS Drop Calculator › Mithril bar

Best way to farm Mithril bar

All 27 monsters that drop Mithril bar, ranked by realistic quantity per hour — not just drop rate. Change the seconds-per-kill for any monster to match your own speed. 5 other sources aren’t ranked; see why below.

Drop data: Mithril bar on the OSRS Wiki

Currently fastest method
Mithril dragon
132 / hr
Monster Drops (rarity · quantity) Avg/kill Sec/kill Kills/hr Qty/hr
Mithril dragon
Combat lvl 304
Always · 3
 3 82 44 132
Scarab Mage
Combat lvl 66–119
2/128 · 22 noted
 0.344 15 240 82
Grotesque Guardians
6/142 · 35–45 noted (2 rolls)
 3.38 150 24 81
Locust rider
Combat lvl 68–106
2/128 · 22 noted
 0.344 22 164 56
Elder custodian stalker
Combat lvl 142 · Slayer 76
6/124 · 10–15 noted
 0.605 46 78 47
Dust devil (Wilderness Slayer Cave)
Combat lvl 93 · Slayer 65
3/126 · 10 noted
 0.238 23 157 37
Mature custodian stalker
Combat lvl 117 · Slayer 67
5/107 · 5–10 noted
 0.35 38 95 33
Dust devil (Regular)
Combat lvl 93–110 · Slayer 65
3/128 · 10 noted
 0.234 27 133 31
Gargoyle
Combat lvl 111 · Slayer 75
2/128 · 15 noted
 0.234 27 133 31
Thermonuclear smoke devil
Combat lvl 301 · Slayer 93
2/107 · 20 noted
 0.374 78 46 17
Skeleton (Lucien's camp)
Combat lvl 132
6/120 · 1
 0.05 12 300 15
Skeleton (Shayzien Crypts)
Combat lvl 132
6/120 · 1
 0.05 12 300 15
Zombie (Shayzien Crypts)
Combat lvl 132
6/120 · 1
 0.05 12 300 15
Skeleton fremennik
Combat lvl 40–60
5/128 · 1
 0.039 11 327 13
Chaos dwarf
Combat lvl 48
6/128 · 1
 0.047 16 225 11
Waterfiend
Combat lvl 115
1/128 · 10–15 noted
 0.098 34 106 10
Shadow warrior
Combat lvl 48
4/128 · 1
 0.031 17 212 6.6
Moss Giant (Iorwerth Dungeon)
Combat lvl 84
6/128 · 1
 0.047 28 129 6
Mutated Bloodveld
Combat lvl 123 · Slayer 50
5/128 · 1
 0.039 32 112 4.4
Zombie (Tarn's Lair) (Medium level)
Combat lvl 61–80
2/128 · 1
 0.016 18 200 3.1
Ferocious barbarian spirit
Combat lvl 166
2/128 · 2 noted
 0.031 39 92 2.9
Soldier (Burthorpe)
Combat lvl 48
1/128 · 1
 1 per 128 kills 14 257 2
Paladin
Combat lvl 62
1/128 · 1
 1 per 128 kills 15 240 1.9
Sir Carl
Combat lvl 62
1/128 · 1
 1 per 128 kills 15 240 1.9
Sir Harry
Combat lvl 62
1/128 · 1
 1 per 128 kills 15 240 1.9

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
Zalcano
Combat lvl 336
3/36 · 53–501 noted
 23.08 Skilling boss, taken down with Mining, Smithing and Runecraft rather than combat, so it isn't ranked against monster kills
Ancient Custodian
Combat lvl 239 · Slayer 76
6/124 · 10–15 noted (3 rolls)
 1.81 Superior: only appears randomly (~1 in 200 kills) while on a slayer task
Choke devil
Combat lvl 264 · Slayer 65
3/128 · 10 noted (3 rolls)
 0.703 Superior: only appears randomly (~1 in 200 kills) while on a slayer task
Marble gargoyle
Combat lvl 349 · Slayer 75
2/128 · 15 noted (3 rolls)
 0.703 Superior: only appears randomly (~1 in 200 kills) while on a slayer task
Insatiable mutated Bloodveld
Combat lvl 278 · Slayer 50
5/128 · 1 (3 rolls)
 0.117 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.