Calculate trait rarity score and ranking within a collection.
The two methods disagree systematically: sum-of-inverse rewards having one very rare trait, while the statistical product rewards rare combinations. Marketplaces generally use the former. Because ranking depends on the method, the same item can appear top-100 on one marketplace and mid-collection on another.
NFT Rarity
Rarity score = Σ(1 ÷ trait frequency); statistical rarity = product of frequencies
Rarity score = Σ(1 ÷ trait frequency); statistical rarity = product of frequencies The two methods disagree systematically: sum-of-inverse rewards having one very rare trait, while the statistical product rewards rare combinations. Marketplaces generally use the former.
Because ranking depends on the method, the same item can appear top-100 on one marketplace and mid-collection on another.
This calculator takes 5 inputs: Collection size, Holders of trait 1, Holders of trait 2, Holders of trait 3, Holders of trait 4. The pre-filled defaults are a realistic starting point — replace them with figures from your own environment for a result you can act on.