Ames, IA, United States

Iowa State University
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Iowa State University enrolls approximately 25,000 undergraduate and graduate students.

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Iowa State University in Ames, Iowa, uses a 4.0 letter-grade scale with plus and minus modifiers to evaluate undergraduate academic performance. The system distinguishes itself by capping both A and A+ at 4.00 grade points, meaning students earning 98–100% receive the same GPA value as those earning 93–97%, though the A+ designation still appears on transcripts. The scale includes plus and minus variants for A, B, and C grades, allowing for more granular assessment of student work, while D and E grades remain unmodified. Grade point values range from 4.00 for excellent work down to 0.00 for failing grades, with specific percentage thresholds defining each letter grade category.

Iowa State University Grading Scale

US 4.0 Scale (+/-) — 4.0 scale

LetterRangeGPAStatus
A+98% – 100%4.0Pass
A93% – 97%4.0Pass
A-90% – 92%3.7Pass
B+87% – 89%3.3Pass
B83% – 86%3.0Pass
B-80% – 82%2.7Pass
C+77% – 79%2.3Pass
C70% – 76%2.0Pass
D60% – 69%1.0Pass
E0% – 59%0.0Fail

Student Resources

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Tips for Iowa State University Students

Know Your Grading Scale

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Plan Your Semester Early

Check Iowa State University's academic calendar for key deadlines — registration, drop dates, and exam periods. Our What-If Simulator helps you plan scenarios before exams.

Leverage Campus Resources

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How It Works

Three simple steps to track your GPA at Iowa State University.

1

Upload Your Syllabus

Drop your Iowa State University syllabus PDF. Our AI reads it instantly — extracting courses, grading components, weights, and due dates.

2

AI Detects Your Grading Scale

GradeCompass.ai automatically identifies Iowa State University and applies the US 4.0 Scale (+/-). No manual setup needed.

3

Track, Simulate & Optimize

See your live GPA, use What-If scenarios, and get AI recommendations on what scores you need to reach your target.

What-If GPA Simulator

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AI Grade Advisor

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Degree Progress

Track your degree requirements and see how many credits remain at Iowa State University.

Frequently Asked Questions — Iowa State University

What GPA scale does Iowa State University use?
Iowa State University uses a standard 4.0 GPA scale with plus and minus modifiers for most letter grades. The scale awards 4.00 points for both A and A+ grades, 3.67 for A-, and descends through B and C variants down to 0.00 for failing E grades. Notably, D and E grades do not have plus or minus modifiers in this system.
How is GPA calculated at Iowa State University?
GPA is calculated by multiplying each course's grade point value by its credit hours, summing these products, and dividing by total credit hours attempted. For example, an A- (3.67) in a 3-credit course contributes 11.01 grade points, while a B+ (3.33) in a 4-credit course contributes 13.32 grade points. The cumulative GPA reflects all graded coursework across all semesters.
What letter grade is 90% at Iowa State University?
A percentage of 90% corresponds to an A- at Iowa State University, which falls within the 90–92% range. This grade carries a GPA value of 3.67 and is classified as Very Good performance. It sits just below the A range that begins at 93%.
What is a 3.67 GPA at Iowa State University?
A 3.67 GPA at Iowa State University corresponds to an A- letter grade, which represents Very Good academic performance. This grade is awarded for work scoring between 90–92%, positioning students just below the A threshold. A 3.67 cumulative GPA demonstrates strong academic achievement and places students well above average performance levels.
What is considered a good GPA at Iowa State University?
A good GPA at Iowa State University typically falls in the B+ to A range, corresponding to 3.33 or higher on the 4.0 scale. Students achieving 3.5 or above demonstrate strong academic performance and competitive standing for honors, scholarships, and graduate programs. For context, a 3.00 (B) represents Good performance, while 3.67 (A-) and above indicates Very Good to Excellent work.
How do I convert Iowa State University percentages to GPA?
To convert percentages to GPA at Iowa State, match your percentage to the corresponding letter grade range, then apply the associated grade point value. For example, 85% falls in the B range (83–86%) earning 3.00 points, while 88% falls in the B+ range (87–89%) earning 3.33 points. Each letter grade tier has defined percentage boundaries with specific GPA values ranging from 4.00 down to 0.00.
What is the passing grade at Iowa State University?
The minimum passing grade at Iowa State University is a D, which covers the percentage range of 60–69% and carries a GPA value of 1.00. Grades below 60% receive an E (Failure) with 0.00 grade points and do not earn credit toward degree requirements. While D grades technically pass, many programs require C or higher in major-specific courses.
Where can I find Iowa State University's official grading policy?
Iowa State University's official grading policies are typically published in the University Catalog and the Academic Policies section of the registrar's website. Students can also consult their academic advisor or department for program-specific grading requirements and policies. The registrar's office maintains the most current information regarding grade scales, academic standing, and transcript notations.

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