Percentile Calculator
Calculate a percentile value or find the percentile rank of a score within a data set, free and instant right in your browser.
Data
Runs in your browser. Your data is not uploaded or stored.
Result
Paste some numbers to see the statistics.
How to use this calculator
- Paste your numbers and choose a percentile (0–100).
- Read the value at that percentile.
How it works
Sorts the data and interpolates between ranks, so the 50th percentile equals the median.
Worked example
90th of 1–10. ≈ 9.1.
Common mistakes
- Confusing a percentile with a percentage.
- Comparing percentiles worked out by different methods.
Tips
- Runs entirely in your browser. Your inputs are not saved or transmitted.
Frequently asked questions
What is a percentile?
The value below which a given percentage of the data falls — the 90th percentile is higher than 90% of the values.
Percentile vs percentage?
A percentage is a proportion of a whole; a percentile is a position within a ranked data set.
Which method?
Linear interpolation between closest ranks — a common, simple convention.
Privacy?
Runs entirely in your browser. Your inputs are not saved or transmitted.
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- Median Calculator
- Standard Deviation Calculator
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Cite this tool
Zerdly. (2026). Percentile Calculator. Retrieved from https://www.zerdly.com/tools/percentile-calculator/
Tip: Enter any known values to calculate the remaining results.
Designed to run locally in your browser. Tool inputs are not intentionally stored by Zerdly unless stated otherwise.