Purdue GPA Calculator

Use this Purdue GPA calculator to estimate your current or cumulative GPA on Purdue University’s current 4.0 plus/minus scale, project how planned courses could change it, work backward from a target GPA, and estimate one same-course repeat replacement. It also keeps external transfer grades out of the Purdue GPA and flags older Purdue grading scales for separate review.

Purdue GPA scale

Purdue calculates GPA by dividing total quality points by GPA hours. For each GPA-bearing course, multiply the course’s semester credit hours by the grade-point value, add the quality points, and divide by the total GPA hours.

GradeGrade points
A+4.0
A4.0
A-3.7
B+3.3
B3.0
B-2.7
C+2.3
C2.0
C-1.7
D+1.3
D1.0
D-0.7
F0.0

Important: Purdue has used different grading scales in earlier periods. If your transcript includes older Purdue coursework, use the scale for that enrollment period instead of assuming the current plus/minus values apply.

How to calculate a Purdue GPA

Suppose you earn an A in a 3-credit course and a B+ in a 4-credit course. The A produces 12.0 quality points, while the B+ produces 13.2. Your GPA for those courses is 25.2 quality points divided by 7 GPA hours, or 3.600.

If you already have a cumulative GPA, enter that GPA and its corresponding GPA hours first. The calculator adds your new GPA-bearing courses to that baseline rather than averaging semester GPAs together.

Which grades count in the Purdue GPA?

Letter grades from A+ through F carry grade points on the current scale. An F contributes zero quality points but still contributes its GPA hours, so it can lower the GPA substantially.

Pass/Not Pass, Satisfactory/Unsatisfactory, incomplete and withdrawal-type marks do not receive a numerical grade-point value in this calculator. If a temporary mark later becomes a final letter grade, use the final posted grade when estimating the updated GPA.

Do transfer grades count toward Purdue GPA?

No. External transfer credit may apply toward Purdue degree requirements, but the grade from the other institution does not transfer into the Purdue GPA. That is why the calculator’s external-transfer course type excludes both the external grade points and those hours from its Purdue GPA result.

This is different from repeating a Purdue-recorded course. Transfer work from another college cannot simply erase a Purdue grade from the cumulative GPA.

How repeated courses affect Purdue GPA

For an undergraduate nonrepeatable course repeated under Purdue’s rule, the most recent grade is the one included in the cumulative GPA when the repeat meets the policy conditions. Purdue also limits repeat attempts and can require approval in cases involving additional attempts or an authorized equivalent course.

Calculator limitation: Repeat Impact estimates one replacement using the same course, same credit hours and a final new grade. Verify a third attempt, an equivalent-course substitution, a different grade mode, or another unusual repeat situation with your Purdue academic advisor or the Registrar.

Repeat example

If a 3-credit F is currently included in your Purdue GPA and you repeat the same eligible 3-credit course for an A, the replacement estimate removes the original 0.0-point attempt from the cumulative calculation and substitutes 12.0 quality points for the new A. Your transcript history and degree-credit treatment are separate questions from this GPA estimate.

Projecting and targeting your GPA

The planned-course section shows how expected grades could change your GPA if those grades become final. A target calculation works in reverse: enter the GPA you want and the number of future GPA hours you expect to complete, and the calculator estimates the average grade points per credit you would need.

A required future average above 4.0 is mathematically impossible on Purdue’s current scale. In that case, try a longer time horizon, a different target, or review whether an eligible repeat could change the cumulative calculation.

Purdue academic standing and the 2.0 line

For university academic standing, Purdue evaluates semester and cumulative GPA after fall and spring terms. A student is in good standing when both are at least 2.0. If one or both fall below 2.0, academic notice can apply; a student already on notice can face academic separation when both the semester and cumulative GPA remain below 2.0 at the next fall or spring review.

That university standing rule should not be confused with a major GPA, CODO requirement, scholarship renewal rule, financial-aid SAP calculation, or graduate-program standard. Those can use different definitions and thresholds.

Frequently asked questions

Is Purdue on a 4.0 GPA scale?

Yes for current undergraduate GPA calculation. Purdue’s current plus/minus values top out at 4.0 for A+ and A, while A- is 3.7, B+ is 3.3, and the scale continues down to F at 0.0.

Does an A+ give more than 4.0 at Purdue?

No. An A+ and an A both carry 4.0 grade points per credit hour on the current Purdue scale.

Does an F count in Purdue GPA?

Yes. An F carries 0.0 grade points, but its GPA hours remain in the denominator, so it lowers the GPA.

Do Purdue transfer grades affect cumulative GPA?

External transfer grades do not transfer into the Purdue GPA. Accepted credit may still apply to degree requirements.

Does retaking a Purdue class replace the old grade?

For an eligible undergraduate nonrepeatable course, Purdue’s cumulative-GPA rule uses the most recent grade when the repeat meets the same-course and grade-mode conditions. Additional attempts and equivalent-course cases can require separate approval or review.

What GPA puts a Purdue undergraduate on academic notice?

Academic notice can apply when the fall or spring semester GPA or cumulative GPA is below 2.0. Returning to good standing requires both to be at least 2.0 at the relevant review.

Is there one Purdue GPA requirement for every major?

No. University academic standing is only one layer. Colleges and majors can have their own course-grade, major-GPA, progression or CODO requirements, so check your specific plan of study and advisor guidance.

Does Purdue require a specific GPA for first-year admission?

Purdue describes first-year admission as an individual, holistic review that considers academic preparation, grades, curriculum strength and competitiveness for the intended program. Do not substitute the enrolled-student 2.0 standing threshold for an admission requirement.

Official Purdue resources

This Purdue GPA calculator is a planning tool, not an official transcript or academic-standing decision. Confirm repeat eligibility, historical grading rules, program-specific GPA requirements, and official outcomes with Purdue University.