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
Alchemical Hydra
Alchemical Hydra
Kills per hour modifier
kills/hour

The Hydra's claw takes about
45 hours and 30 minutes to obtain if you are exactly on droprate.

Expected kills
1,001
Expected kills on drop rate
Expected time to obtain
45h 30m
at 22 kills/hour (average)

The time to obtain Hydra's claw at Alchemical Hydra, if you are exactly on drop rate, will be 66 hours and 44 minutes with beginner gear, 45 hours and 30 minutes with average gear and 40 hours and 2 minutes in max gear. That is about 1,001 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 172,100,898 gp in total loot — about 3,782,437 gp per hour at 22 kills per hour. The biggest earner over that stretch is Hydra's claw at about 45,925,000 gp.

Each kill has a 0.0999% chance at Hydra's claw. Half of all players get it within 694 kills, 2,304 kills covers 90%, and 4,608 kills covers 99% — so going past 1,001 kills without one is unlucky, but not unusual.

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

Loot from 1,001 kills

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

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