OSRS Barrows Loot Calculator
Analyze barrows chest loot, barrows unique drop rate, and convert runs into EV and gold per hour for your next OSRS Barrows grind.
Drop Rates & Unique Chance
This barrows loot calculator models the osrs drop rate calculator workflow across the tunnel and crypt rolls so you know how many barrows chest loot pulls it takes to see a unique.
Two-stage probability model
Each run checks whether you've met the kill count, then rolls the unique table with mutually exclusive logic to ensure only one item drops. The calculator tracks both individual and cumulative chances, mirroring how the Barrows chest behaves in-game.
Per-chest roll details
Behind the scenes we simulate the rune, bolt rack, and unique rolls separately so osrs loot calc theorycrafting stays accurate. Probability outputs refresh instantly whenever you change the number of runs.
Set items vs. other uniques
Dharok's, Ahrim's, Karil's, and the other Barrows sets all share the same one-in-16 unique slot. The tool highlights the relative weight of set pieces versus weapons so you can forecast which slots you're likely to complete first.
Common rewards
Death runes, chaos runes, bolt racks, and other staples appear using the latest loot tables. Adjust the morytania hard diary toggle to factor in additional bolt racks from the crypt.
Expected Value (EV)
Total EV and per-chest EV update as you tweak run counts, price overrides, or the Morytania bonus. Learn why EV per run holds steady in our FAQ explanation.
Price sources & updates
Default values pull from recent Grand Exchange snapshots, and we note the exact batch date inside the data source widget. Override any item to plug in clan buy limits, personal margins, or Ironman valuations for your osrs loot calc planning.
GPH (Gold per Hour)
Combine EV, run time inputs, and supply costs to turn barrows unique drop rate math into actionable gold per hour goals.
Time per run inputs
Enter your average chest time, teleport costs, and consumable spend to project net profit. Want to compare routes? Try the WoW Delves loot calculator for a horizontal look at other LootCalc tools.
