Percentile Calculator (k-th Percentile & Rank)
Use this free percentile calculator to find the k-th percentile of a data set, or the percentile rank of a value. It shows the sorted data, key summary statistics, and the steps.
How it is calculated
For the k-th percentile, the position is rank = (k/100)(n − 1) in the sorted data, then values are interpolated. The percentile rank of a value is the percentage of data at or below it.
Original price was: $109.99.$54.99Current price is: $54.99.
How to use it
- Choose the mode (percentile value, or percentile rank).
- Enter your data and the percentile k or value.
- Press Calculate.
Related: the Descriptive Statistics Calculator and more free math calculators.
Frequently asked questions
Which percentile method is used?
Linear interpolation between closest ranks (the common method used by many textbooks and spreadsheets).
Original price was: $109.99.$54.99Current price is: $54.99.
What is a percentile rank?
The percentage of the data that falls at or below a given value.
Original price was: $109.99.$54.99Current price is: $54.99.
Does it sort the data for me?
Yes — enter values in any order.
Original price was: $27.99.$17.99Current price is: $17.99.
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