Combination Calculator

Calculate the number of combinations (nCr) and permutations (nPr) for any set of items.

Calculation Type *

Show Steps

n (Total Items) *

Total number of items

r (Choose) *

Number of items to choose

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Combination Result

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Visual Representation

Factorial and combination visualization

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Calculation Breakdown

Step-by-step calculation

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nCr

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Combinations

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nPr

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Permutations

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n factorial

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r factorial

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Combination & Permutation Formulas

Key formulas explained

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Tips & Insights

Understanding combinations and permutations

📊 Mathematical Disclaimer: This calculator computes combinations (nCr) and permutations (nPr) using factorial calculations. Results are for educational purposes.