Percentile rank
Find a score’s midrank percentile within a list.
How this works
Midrank percentile = 100 × (count below + half the count equal)/n.
Example
Using the example inputs, percentile rank (%) is 50.
- Reference values
- 10, 20, 30, 40
- Score
- 25
- Percentile rank (%)
- 50
Scope and assumptions
Uses your inputs only; results are rounded for display.
NIST statistical methods handbook