Permutation & Combination Calculator
Calculate permutations and combinations. Essential for probability, statistics, and counting problems.
Inputs
Results
Result
720
FormulaP(10,3) = 10! / (10-3)!
Result
720
How to Use This Calculator
- Start by filling in the input fields below. Results update instantly as you type, so you can experiment with different values to see how they affect the outcome.
- n (Total Items) — Total number of items Minimum value: 1 (default: 10).
- r (Selected Items) — Number of items to select Minimum value: 0 (default: 3).
- Calculation Type — 1=Permutation (order matters), 2=Combination (order doesn't matter) default: 1.
- Once all inputs are set, review your results in the Results panel. Here's what each output means:
- Result — shown as a numeric value. This is the primary result of this calculator.
- Formula — your calculated result.
- Explore the related calculators below if you need deeper analysis or want to approach this topic from a different angle.
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Formula
Permutation: P(n,r) = n!/(n-r)!, Combination: C(n,r) = n!/(r!(n-r)!)Related Calculators
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