Percentile Calculator (and Percentile Rank)
Percentile calculator: any percentile of a data set (Excel PERCENTILE.INC method), the quartiles and IQR, and the percentile rank of a value.
Pp = x⌊r⌋ + (r − ⌊r⌋)(x⌊r⌋+1 − x⌊r⌋), r = p(n − 1)
How to use this calculator
- Type your input in the box.
- The result updates as you type.
- Use “Copy result” or “Copy link” to share it.
Sort the data; the p-th percentile sits at position p × (n − 1), interpolating between neighbors. Q1, Q2 and Q3 are the 25th, 50th and 75th percentiles.
Frequently asked questions
90th percentile of 55, 62, 68, 70, 71, 75, 78, 81, 85, 88, 92, 97?
91.6.
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