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
Zalcano
Zalcano
Kills per hour modifier
kills/hour

The Zalcano shard takes about
15 hours and 38 minutes to obtain if you are exactly on droprate.

Assumes a themed world with 15 participants at 48 kills/hour. Zalcano shard/Smolcano roll independently per player, unaffected by performance. The crystal tool seed table (crystal tool seed, uncut onyx) is a points-weighted lottery per kill — "Average" assumes an equal 1-in-15 share; "Max gear" estimates your average share (~12.9%, not a flat 25%) from being top scorer on ~25% of kills

Expected kills
750
Expected kills on drop rate
Expected time to obtain
15h 38m
at 48 kills/hour (average)

The time to obtain Zalcano shard at Zalcano, if you are exactly on drop rate, will be 15 hours and 38 minutes with average or max gear. That is about 750 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 92,166,159 gp in total loot — about 5,898,634 gp per hour at 48 kills per hour. The biggest earner over that stretch is Mithril bar at about 16,723,868 gp.

Each kill has a 0.1333% chance at Zalcano shard. Half of all players get it within 520 kills, 1,726 kills covers 90%, and 3,452 kills covers 99% — so going past 750 kills without one is unlucky, but not unusual.

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

Loot from 750 kills

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

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