The usual community estimate for a Mirror of Kalandra drop in PoE2 is around 0.0001% , which is about 1 in 1,000,000. Some sources describe it as even rarer, while others put the broader unofficial estimate anywhere from 1 in 10 million to 1 in 26 million per monster kill.

What that means

  • 0.0001% = 1 in 1,000,000.
  • 1 in 10,000,000 = 0.00001%.
  • 1 in 26,000,000 = 0.00000385%.

So if you want a simple answer in percent, 0.0001% is the common shorthand estimate , but the real number is not officially confirmed by Grinding Gear Games.

Practical takeaway

Even with heavy farming, a Mirror drop is so rare that most players will never see one naturally. In other words, it’s closer to a lottery-tier event than a normal chase item.

Note

Public discussions and guide sites agree on the rarity, but the exact drop rate is still unofficial and speculative.