Pokémon Damage Calculator
Build your attacker on the Team tab, then calculate exact damage against any defender. Same engine as the Showdown calculator, no copying sets between tools.
What is modeled
STAB and Tera, type effectiveness, EVs, IVs, natures, items like Life Orb and Choice Band, abilities, weather, terrain, screens, spread moves, critical hits, stat stages, burn, and multi-hit moves. Moves whose power depends on battle state (Counter, Super Fang, Fling) are labelled as not modeled rather than reported as zero.
True KO probabilities
Every attack has 16 possible damage rolls. We compute multi-hit KO odds by exact convolution over all roll combinations, not the shortcut formula that gets 2HKO chances wrong.
The Showdown engine
Damage comes from the open-source @smogon/calc that powers the Showdown calculator, and our KO-probability and roll-shaping math is unit-tested against it.