Percentile Calculator - Find Percentile Ranks
Calculate any percentile of your dataset. Find percentile ranks, quartiles, and understand data distribution with our percentile calculator.
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Common percentiles: 25 (Q1), 50 (median), 75 (Q3), 90, 95, 99
A percentile indicates the value below which a given percentage of observations fall. For example, the 50th percentile (median) is the value below which 50% of the data falls.
- 25th percentile (Q1): First quartile
- 50th percentile (Q2): Median
- 75th percentile (Q3): Third quartile
- 90th, 95th, 99th: Often used in performance metrics
This calculator uses linear interpolation between data points, which is one of several standard methods for percentile calculation.
How to Use Percentile Calculator
- 1
Enter your numbers separated by commas, spaces, or new lines.
- 2
Specify the percentile you want to calculate (0-100).
- 3
Click "Calculate Percentile" to get the result.
- 4
View the percentile value, position, and sorted data.
Frequently Asked Questions
What is a percentile?▾
A percentile indicates the value below which a given percentage of observations fall. For example, the 50th percentile (median) is the value below which 50% of the data falls.
What are common percentiles?▾
Common percentiles include 25th (Q1), 50th (median/Q2), 75th (Q3), 90th, 95th, and 99th percentiles. These are used in statistics, testing, and performance metrics.
How is percentile calculated?▾
This calculator uses linear interpolation between data points, which is one of several standard methods for percentile calculation defined by NIST.
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