Percentile Calculator
Quickly determine the percentile for your dataset. Understand data distribution and relative standing.
Input Data
Separate values with commas.
Result
Data Visualization
Understanding Percentiles
A percentile is a measure used in statistics indicating the value below which a given percentage of observations in a group of observations fall. For example, the 90th percentile is the value below which 90% of the observations may be found.
Use Cases: Percentiles are commonly used to understand the relative standing of a value within a dataset. They are widely applied in:
- Education: To understand student performance relative to peers in standardized tests.
- Health: In growth charts to track a child's size compared to others of the same age and sex.
- Finance: To analyze investment performance relative to benchmarks.
Formula: While there are different methods to calculate percentiles, this calculator uses linear interpolation, a common approach for datasets. For a dataset of N values sorted in ascending order, the rank R for the Pth percentile is calculated as: R = (P / 100) * (N - 1) + 1. The percentile value is then determined based on this rank.
Sources: Wikipedia, Math is Fun