Combination Calculator

Calculates the number of ways to choose k items from a set of n items, where order doesn't matter (nCk). Enter n and k separated by a comma, like "5,2".

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Calculates the number of ways to choose k items from a set of n items, where order doesn't matter (nCk). Enter n and k separated by a comma, like "5,2".

Use cases

  • Calculating how many possible 5-card poker hands exist
  • Solving a combinatorics problem for a math assignment

Examples

Choose 2 from 5

5,2
{"combinations": 10}

FAQ

Is my data sent to a server?

Yes — the calculation runs on the server for this tool.