☾
Permutation & Combination Calculator
Calculate nPr and nCr with step-by-step solutions
Ad Unit
Enter Values
n (total items)
r (chosen items)
Calculate
Formulas
nPr = n! / (n - r)!
nCr = n! / [r! * (n - r)!]
Permutation (nPr)
Ad Unit
Combination (nCr)
Ad Unit