OSRS Drop Calculator › Crystal key

Best way to farm Crystal key

All 8 monsters that drop Crystal key, 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: Crystal key on the OSRS Wiki

Currently fastest method
Deranged archaeologist
2.8 / hr
Monster Drops (rarity · quantity) Avg/kill Sec/kill Kills/hr Qty/hr
Deranged archaeologist
Combat lvl 276
7/131 · 1
 0.053 68 53 2.8
Grotesque Guardians
5/142 · 1 (2 rolls)
 0.07 150 24 1.7
Great white shark
Combat lvl 175
2/100 · 1
 0.02 45 80 1.6
Kraken
Combat lvl 291 · Slayer 87
1/128 · 1
 1 per 128 kills 32 112 0.9
Sarachnis
Combat lvl 318
1/100 · 1
 0.01 71 51 0.5
Alchemical Hydra
Combat lvl 426 · Slayer 95
1/101 · 1 (2 rolls)
 0.02 149 24 0.5
Thermonuclear smoke devil
Combat lvl 301 · Slayer 93
1/107 · 1
 1 per 107 kills 78 46 0.4
Kree'arra
Combat lvl 580
1/127 · 1
 1 per 127 kills 75 48 0.4
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.