Estimate class rank percentile from GPA.
Two conventions exist and they run in opposite directions, which is the source of most confusion about class rank. Top percent divides your rank by class size, so being 42nd of 310 is the top 13.5 percent and lower is better. Percentile rank reports the share of the class you are above, so the same student is at roughly the 86th percentile and higher is better. Ties are handled with the mid-rank convention: if three students share 42nd place they are all treated as 43rd for percentile purposes, which is the standard approach and avoids advantaging or penalising anyone in the tied group.
Mid-rank for ties
Mid-rank = your rank + (students tied - 1) / 2
Two conventions
Top percent = mid-rank / class size x 100; percentile rank = 100 - (mid-rank - 0.5) / class size x 100
An illustrative estimate only. Grading scales, GPA conversion, weighting, transfer credit and progression rules are set by your institution and vary between programmes and academic years. Confirm all figures with your course handbook, registry or academic adviser before relying on them for any academic decision.
US high school transcripts most often report top percent, where a lower figure is better and decile bands are common. Standardised tests report percentile rank, where higher is better. Always check which is meant — the same student can be described as top 14 percent or 86th percentile.
By the mid-rank convention: everyone tied gets the average of the positions the group occupies. Three students tied at 42nd occupy positions 42, 43 and 44, so all three are treated as 43rd. This keeps the percentile arithmetic consistent regardless of how ties fall.