

So, for example, if a legendary 2h mighty weapon drops for a barbarian playing in Torment difficulty, the probability of this weapon being the IK's Boulder Breaker is 50/400 = 12.5%.

The probability of getting a particular item = (drop chance of that item) / (total drop chance for that item type). Each item has a drop chance equal to the default drop chance value for that item type unless noted otherwise. If there are Torment specific drops, I've listed separate totals for Torment mode and normal mode which also includes gambling. This is the sum of all drop chance of all legendary items of that particular item type. Each item type has a probability total that is listed under the item type. Special thanks to the Korean guy(s?) who posted the information and to Silentkiller who provided the link to the site.

This is the list of drop chance for all items in the game under the smart loot system.
