Compare calculators

Both calculators run independently — change the inputs on either side to compare results.

Loot Drop Probability Calculator

Calculates the cumulative probability of getting at least one of a desired item across multiple independent attempts at a given per-attempt drop rate. Applies to gaming loot drops, dice-roll board game outcomes, and any binomial 'at least one success' problem.

Drop Rate (%)

Number of Attempts (attempts)

Fill in the required fields to see your result.

Gaming

Critical Hit Calculator

Calculate the average damage output of an attack given base damage, critical hit chance, and critical hit multiplier — the expected-value formula every theorycrafter uses to compare crit-heavy builds against flat damage builds. Use it to decide whether to stack crit chance, crit damage, or raw damage stats on your gear.

Base Damage (dmg)

Crit Chance (%)

Crit Multiplier (x)

Fill in the required fields to see your result.

Key differences

	Loot Drop Probability Calculator	Critical Hit Calculator
Category	Gaming	Gaming
Inputs required	2	3
Result	Probability (%)	Average Damage (dmg)
What it does	Calculates the cumulative probability of getting at least one of a desired item across multiple independent attempts at a given per-attempt drop rate. Applies to gaming loot drops, dice-roll board game outcomes, and any binomial 'at least one success' problem.	Calculate the average damage output of an attack given base damage, critical hit chance, and critical hit multiplier — the expected-value formula every theorycrafter uses to compare crit-heavy builds against flat damage builds. Use it to decide whether to stack crit chance, crit damage, or raw damage stats on your gear.