METHOD
How this tool works
Combinations ignore order; permutations count different orders.
CALCULATORS
Combinations and Permutations Calculator
Calculate nCr combinations and nPr permutations.
FreeNo accountRuns locally
Combinations nCr
Permutations nPr
EXAMPLE
A quick check
Choosing 2 items from 5 gives 10 combinations and 20 permutations.
Designed for a single task.Inputs are processed in your browser; Utilens does not require an account or intentionally send your entered tool values to an application server.
Quick answers
What limits apply?
Use reasonably sized whole numbers to avoid very large results.
Can r exceed n?
No.