![[🎃] Anime Expeditions Calculator](/media/optimized/64345daff84eede23ed64ead-498.webp)
This calculator is arithmetic on a table, not a live mixer. Enter quantities from your own [🎃] Anime Expeditions session. It will not click the shop.
Drop probability
Trait hit chance
Estimates the chance of seeing one trait at least once across the number of independent rerolls you enter. The 0.1 default is the widely published Unbound rate in percent. Pity, filters, and auto-reroll stops are not part of this formula.
Chance of at least one success = 1 − (1 − chance per attempt) raised to the number of attempts.
Enter the published percent, not a fraction. 0.1 means 0.1 percent. This is not a live pity counter and it does not read your inventory.
Material planner
Crystals to a pity target
Subtracts the Trait Crystals you already hold from a reroll target. The 1,500 default matches the published Unbound pity. Each reroll is documented as 1 Trait Crystal.
Required total = materials per upgrade × number of upgrades. Missing = max(required total − materials already owned, 0).
Use 300 for Draconic, 500 for Forsaken, 750 for Primordial, or 1,500 for Unbound only if those pity counters still match the in-game tracker. A September 2026 traits page is the basis for these four numbers.