OSRS Drop Calculator › Oyster

Best way to farm Oyster

All 10 monsters that drop Oyster, 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: Oyster on the OSRS Wiki

Currently fastest method
Crab (Level 23)
103 / hr
Monster Drops (rarity · quantity) Avg/kill Sec/kill Kills/hr Qty/hr
Crab (Level 23)
Combat lvl 23
1/10 · 2
 0.2 7 514 103
Mudskipper
Combat lvl 30–31
22/128 · 1
 0.172 7 514 88
Rock Crab
Combat lvl 13
12/128 · 2
9/128 · 1
 0.258 14 257 66
Crab (Level 21)
Combat lvl 21
1/10 · 1
 0.1 6 600 60
Sand Crab
Combat lvl 15
12/128 · 2
9/128 · 1
 0.258 17 212 55
Ammonite Crab
Combat lvl 25
12/128 · 2
9/128 · 1
 0.258 26 138 36
Mogre (sea)
Combat lvl 54 · Slayer 32
7/128 · 1
 0.055 15 240 13
Mogre
Combat lvl 60 · Slayer 32
3/128 · 1
 0.023 13 277 6.5
Waterfiend
Combat lvl 115
2/128 · 3
 0.047 34 106 5
Cave kraken
Combat lvl 127 · Slayer 87
4/200 · 1
 0.02 35 103 2.1
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.