Percentile Rank Calculator
Percentile rank calculator works out Percentile rank of the value and Values below it from Data set, Value to rank and Tie handling. The default figures on this page give percentile rank of the value of 50.00 %; change any entry and the result, the working and the sources update together.
Your figures
Updates as you typeHow this is worked out
4 steps
- Sorted set (5 values): 10, 20, 30, 40, 50.
- 2 below the score, 1 equal to it, 2 above.
- PR = 100 x (2 + 0.5 x 1) / 5 = 50%.
- Going the other way, the 50th percentile of this set is 30.
Its 5 worked examples are re-run on every release, last on 15 September 2026. What changed
Sources and references
4 sources
What the percentile rank calculator calculates
Finds the percentile rank of a value within a data set under the standard mid-rank, strictly-below or cumulative conventions, and works the other direction to give the value at a chosen percentile.
How to use this percentile rank calculator
Enter Data set, Value to rank, Tie handling and Percentile to look up (the other direction). Percentile rank of the value updates as you type, and “Use a worked example” loads checked figures you can adjust. Change one figure at a time to see what drives the result.
How the result is worked out
Open “How this is worked out” beside the result for the step-by-step calculation behind Percentile rank of the value, Values below it and Values equal to it.
The method follows NIST/SEMATECH e-Handbook of Statistical Methods, 7.2.6.2 Percentiles, Hyndman, R.J. & Fan, Y. (1996), "Sample Quantiles in Statistical Packages", The American Statistician 50(4), 361-365, Crocker, L. & Algina, J., Introduction to Classical and Modern Test Theory and USGS, WaterWatch percentile classes for streamflow.
Ranking 30 in 10, 20, 30, 40, 50 example
With Data set: 10,20,30,40,50, Value to rank: 30, the calculator returns Percentile rank of the value: 50, Values below it: 2, Values equal to it: 1. This example is checked against an independent source in the test suite.
What you can compare
Change one input at a time to see how it affects Percentile rank of the value, Values below it and Values equal to it. The inputs you can vary are Data set, Value to rank, Tie handling, Percentile to look up (the other direction) and Percentile-value method.
Results are general information, not financial, tax, legal, medical or engineering advice. Check any decision that matters with a qualified professional.
See something wrong? Report a problem with this calculator
Frequently asked questions
What is the 95% percentile?
On the figures this page opens with — value to rank 30 — the percentile rank of the value is 50%. No single number fits everyone: change any figure above and the answer updates as you type, with each step of the arithmetic beside it.
What does a percentile rank of 70 mean?
Finds the percentile rank of a value within a data set under the standard mid-rank, strictly-below or cumulative conventions, and works the other direction to give the value at a chosen percentile. On this page it is computed from Data set, Value to rank and Tie handling and shown as Percentile rank of the value, Values below it and Values equal to it.
What is a good percentile rank score?
It needs Data set, Value to rank, Tie handling, Percentile to look up (the other direction) and Percentile-value method. Nothing else is required, and the figures stay in your browser.
Is 99 percentile top 1%?
Finds the percentile rank of a value within a data set under the standard mid-rank, strictly-below or cumulative conventions, and works the other direction to give the value at a chosen percentile. On the figures this page opens with — value to rank 30 — the percentile rank of the value is 50%. Put your own figures in their place and the working updates beside the result.
How do I calculate my percentile rank?
Finds the percentile rank of a value within a data set under the standard mid-rank, strictly-below or cumulative conventions, and works the other direction to give the value at a chosen percentile. Open “How this is worked out” beside the result to see each step for your own figures.
What information do I need for the percentile rank calculator?
You need Data set, Value to rank, Tie handling, Percentile to look up (the other direction) and Percentile-value method. The page opens with default figures that give percentile rank of the value of 50.00 %, so you can see the scale before entering your own.