On Drop Rate
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About On Drop Rate

On Drop Rate helps you check roughly how long you'd need to grind for an item, and whether you're actually dry right now, or just feeling like it.

We're passionate OSRS players, grinding since the game's 2013 release across multiple accounts and every seasonal game mode along the way.

This vibe-coded project is built and maintained by us.

Greetings from Team On Drop Rate.

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← All bosses
Callisto (solo)
Callisto (solo)
Boss version
Artio Callisto (solo)
Kills per hour modifier
kills/hour

The Claws of Callisto takes about
8 hours and 10 minutes to obtain if you are exactly on droprate.

Expected kills
196
Expected kills on drop rate
Expected time to obtain
8h 10m
at 24 kills/hour (average)

The time to obtain Claws of Callisto at Callisto (solo), if you are exactly on drop rate, will be 11 hours and 32 minutes with beginner gear, 8 hours and 10 minutes with average gear and 7 hours in max gear. That is about 196 kills on average.

Customize your estimated kills per hour above to see your own time to be on drop rate.

Additional information

During this grind you will also be making roughly 27,555,543 gp in total loot — about 3,374,148 gp per hour at 24 kills per hour. The biggest earner over that stretch is Ranarr seed at about 2,609,399 gp.

Each kill has a 0.5102% chance at Claws of Callisto. Half of all players get it within 136 kills, 451 kills covers 90%, and 901 kills covers 99% — so going past 196 kills without one is unlucky, but not unusual.

Loot values use live Grand Exchange prices and shift with the market.

Loot from 196 kills

Loading prices…
Item Quantity Price (ea) Total value
Total loot value—

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