Undergraduate Trinity College and Pratt School of Engineering; letter-graded courses

Duke
GPA Calculator

Estimate your GPA for Duke University. Duke assigns D− 1.0 point, not 0.7, and gives both A and A+ 4.0. Its undergraduate GPA uses Duke course credits and is truncated to three decimal places.

Official policy · Checked Aug 31, 2026
No sign-up. No grades sent.
Check the scope before entering courses.

Finalized undergraduate grades from this institution only. Repeats, forgiveness, transfer work, unresolved marks, and admissions recalculation are not supported.

Your courses

Duke supported undergraduate scaleA = 4.0
01
02
03

Illustrative example. Replace these courses with your own.

See what counted

0 excluded course(s). 0 incomplete row(s). Credits with a passing grade: not determined by this profile. This is not an official earned-credit audit, and does not account for duplicate credit or degree requirements.

What’s included in this grade scale?

Undergraduate Trinity College and Pratt School of Engineering; letter-graded courses. Current posted policy checked August 31, 2026; not a claim of a new 2026 policy edition. Only the finalized grades listed in this scale are supported. Repeated, transferred, forgiven, developmental and unresolved coursework requires review; this tool does not decide transcript inclusion or graduation eligibility. Letter-grading basis only: Duke excludes courses taken under S/U, C/NC and P/F options, including their failing outcomes. Do not enter those as letter-graded failures. Display: truncated to 3 decimals under the cited rule.

A+4.00
A4.00
A-3.70
B+3.30
B3.00
B-2.70
C+2.30
C2.00
C-1.70
D+1.30
D1.00
D-1.00
F0.00

Policy: duke-198419-undergraduate · v2026-08-31.1. Results truncated to 3 decimal places. Display: truncated to 3 decimals under the cited rule. GPA credits and earned credits are different.

Duke average GPA: first-year and transfer figures are different

Duke’s published 3.90 GPA average belongs to admitted transfer students in the 2023–24 application cycle. For fall 2025 first-year entrants, its Common Data Set publishes test-score ranges but leaves the average-GPA field blank.

Duke Common Data Set 2025–26

Duke Admissions: Apply: Admitted transfer GPA average · not first-year GPA

Read the GPA profile, student group and comparison notes →

A POLICY-SPECIFIC EXAMPLE

Duke GPA Scale and Calculation

Registrar example: B/1, B+/1, A−/1, A+/1 and B/0.5 produce 15.5 quality points ÷ 4.5 course credits = 3.444.

View the Duke grading scale →

Duke Semester or Cumulative GPA?

For an entered semester, include only that term’s eligible courses. To plan cumulative GPA, use the official existing quality points and GPA credits with your new term; do not average term GPAs equally. The supported policy and any cumulative cap are stated in the calculator.

Plan cumulative and target GPA with the Duke scale → · See why repeats and withdrawals need separate rules →

Check Duke admission GPA requirements →

Supported scope

Only the finalized grades listed in this scale are supported. Repeated, transferred, forgiven, developmental and unresolved coursework requires review; this tool does not decide transcript inclusion or graduation eligibility. Letter-grading basis only: Duke excludes courses taken under S/U, C/NC and P/F options, including their failing outcomes. Do not enter those as letter-graded failures.

Current posted policy checked August 31, 2026; not a claim of a new 2026 policy edition. Finalized undergraduate grades on the listed scale only. No admission GPA, transfer-course blending, repeat/forgiveness logic, time-based grade changes, or earned-credit audit. This estimate cannot establish degree eligibility.

AI-assisted source check. No independent human review claimed. Rule version 2026-08-31.1. Source register.