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Both calculators run independently β€” change the inputs on either side to compare results.

Math

Basic Probability Calculator

Instantly calculate the probability of an event by entering the number of favorable and total outcomes. Useful for dice, cards, lotteries, and any scenario with countable outcomes.

Fill in the required fields to see your result.
Math

Permutation Calculator

Calculate the number of ordered arrangements of r items chosen from n distinct items, where the order of selection matters. Ideal for rankings, sequences, and any selection where position counts.

Fill in the required fields to see your result.

Key differences

Basic Probability CalculatorPermutation Calculator
CategoryMathMath
Inputs required22
ResultProbabilityP(n,r)
What it doesInstantly calculate the probability of an event by entering the number of favorable and total outcomes. Useful for dice, cards, lotteries, and any scenario with countable outcomes.Calculate the number of ordered arrangements of r items chosen from n distinct items, where the order of selection matters. Ideal for rankings, sequences, and any selection where position counts.