Permutation Combination Calculator
Calculate nPr and nCr.
Permutations
720
Combinations
120
Formula
nPr = n!/(n-r)! and nCr = n!/(r!(n-r)!)
Calculate nPr and nCr.
How to Use
Calculate nPr and nCr. Enter the N and R values and review the Permutations and Combinations outputs after you calculate.
- Open the calculator : Start with Permutation Combination Calculator.
- Enter values : Fill in the required inputs and any optional settings.
- Review the result : Read the output and use the about page for more detail if needed.
Common Questions
What formula does the Permutation Combination Calculator use?
nPr = n!/(n-r)! and nCr = n!/(r!(n-r)!).