# Combinations Calculator

An online calculator to calculate the number of combinations of n elements taken r a the time whose formula is given below. ## Use of Combinations Calculator1 - Enter the positive integers n (total number of objects) and r (the number of objects in each group) and press "Calculate Combinations".
## Formula for the Number of CombinationsThe number of combinations of n objects taken in groups of r objects at the time is given byn C r = C(n , r) = n! / [(n-r)! r!]
## More References and LinksPermutations and Combinations ProblemsPermutations Calculator Math Calculators and Solvers. Power Calculator. |