Duke University GPA Calculator
Built for Duke University students on the 4.0 scale. Free, mobile-friendly, no signup.
This semester
How grades convert to points here
Duke University uses full plus/minus grading, so an A- is 3.7, a B+ is 3.3, and each modifier moves the average by 0.3 points. Over a four-year transcript the difference between consistently earning A- and consistently earning A is roughly a third of a grade point — enough to cross most honors thresholds.
Latin honors at Duke University
Duke University awards Latin honors by class rank rather than a fixed GPA. Summa: top 5% of the graduating class; magna: next 10%; cum laude: next 10% (roughly top 25% overall), calculated separately for Trinity College and the Pratt School of Engineering.
Because honors here are relative, your own GPA only tells you half the story. The other half is the distribution of the graduating class, which is why Duke University typically publishes the qualifying GPA after the fact rather than in advance.
The part students usually miss
Because the percentile bands are fixed but grades have inflated, the effective GPA needed just to qualify for any Latin honor has crept up over two decades — recently around 3.93+ for Trinity and 3.88+ for Pratt, near the ceiling of the scale.
Grading policy compiled from Duke University's registrar and academic catalog. Policies change; the registrar is authoritative. See our methodology.