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Percentile Calculator

Find the percentile rank of a value or find the value at a given percentile.

Calculator

Mode

Data Values

Value to find percentile for

Common Percentiles

Formulas

Percentile Rank:

PR = (values below + 0.5 × values equal) / n × 100

Value at Pth Percentile:

Position = P/100 × (n - 1), then interpolate

Percentile Interpretation

25th

First Quartile (Q1)

Lower 25%

50th

Median (Q2)

Middle value

75th

Third Quartile (Q3)

Upper 25%

90th

Top 10%

High performers

Frequently Asked Questions

What does percentile rank mean?

The percentile rank tells you what percentage of values in the data set are less than or equal to a given value. For example, being in the 80th percentile means you scored higher than 80% of participants.

Is 50th percentile the same as mean?

No, the 50th percentile is the median (the middle value), not the mean (average). The mean can be affected by outliers, while the median is not.

Related Calculators

Quartile Calculator Z-Score Calculator Five Number Summary Standard Deviation

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