Duke
GPA calculator
Duke GPA
How Duke University calculates GPA
Duke University (North Carolina) calculates GPA as a credit-weighted average: multiply each course's grade points by its credits, add them up, and divide by total credits. The detail that matters is the grade scale.
The Duke grade scale — what makes it specific
A+ rule: Duke uses a 4.0 plus/minus scale; A+ and A both equal 4.0 (A+ capped). D- = 1.0.
Failing grade: Duke University uses "F" for a failing grade (0.0).
Repeated courses & grade replacement
Duke does not publish a single grade-replacement policy; qualifying attempts are included per registrar rules.
Academic standing
Duke truncates GPA to three decimal places (not rounded). Undergraduate (Trinity and Pratt) share this scale.
Good to know
Duke uses a standard 4.0 plus/minus scale with A+ capped at 4.0 (Trinity College and the Pratt School of Engineering). One small detail: Duke truncates the GPA to three decimal places rather than rounding, so a 3.4999 shows as 3.499.
Need to plan ahead? Use the target GPA planner to find the grades you need, or the final grade calculator for a single class. International student? See CGPA to US GPA (WES).