Combinations Calculator (nCr)

Calculate unordered selections: how many ways to choose r items from n.

n (total items):

r (chosen):

How to use

Enter n and r, then click Calculate. Everything runs in your browser — nothing is uploaded or stored.

How many 5-card hands from 52 cards?

2,598,960.

Can r be bigger than n?

No — you cannot choose more items than exist.

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