OSRS Drop Calculator › Umbral frag

Best way to farm Umbral frag

All 16 monsters that drop Umbral frag, ranked by realistic quantity per hour — not just drop rate. Change the seconds-per-kill for any monster to match your own speed. 1 other source isn’t ranked; see why below.

Currently fastest method
Aquanite
4.7 / hr
Monster Drops (rarity · quantity) Avg/kill Sec/kill Kills/hr Qty/hr
Aquanite
Combat lvl 145 · Slayer 78
6/128 · 1
0.047 36 100 4.7
Manta ray (monster)
Combat lvl 133
8/297 · 1
0.027 37 97 2.6
Stingray
Combat lvl 92
3/500 · 1–2
1 per 111 kills 22 164 1.5
Orca
Combat lvl 205
2/92 · 1
0.022 63 57 1.2
Frigatebird
Combat lvl 78
3/500 · 1
1 per 167 kills 19 189 1.1
Tern
Combat lvl 20
1/500 · 1
1 per 500 kills 7 514 1
Albatross
Combat lvl 110
4/500 · 1
1 per 125 kills 29 124 1
Osprey
Combat lvl 63
2/500 · 1
1 per 250 kills 18 200 0.8
Butterfly ray
Combat lvl 68
12/2,980 · 1
1 per 248 kills 19 189 0.8
Narwhal
Combat lvl 111
1/200 · 1–2
1 per 133 kills 39 92 0.7
Bull shark
Combat lvl 65
2/1,000 · 1
1 per 500 kills 19 189 0.4
Eagle ray
Combat lvl 44
1/750 · 1
1 per 750 kills 14 257 0.3
Hammerhead shark
Combat lvl 90
2/1,000 · 1
1 per 500 kills 28 129 0.3
Pygmy kraken
Combat lvl 93
1/540 · 1
1 per 540 kills 33 109 0.2
Tiger shark
Combat lvl 125
2/1,000 · 1
1 per 500 kills 36 100 0.2
Hermit crab
Combat lvl 19
1/1,280 · 1
1 per 1,280 kills 20 180 0.1

Other sources (not ranked)

Elder aquanite is a superior slayer monster: it only appears randomly (~1 in 200 kills) while you’re on a slayer task. So it’s not included in the ranking above.

Monster Drops (rarity · quantity) Avg/kill
Elder aquanite
Combat lvl 305 · Slayer 78
~1/22 · 1 (3 rolls)
0.136
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.