CalculateYourGPA.com

GPA Scale Guide

Everything you need to know about the 4.0 GPA scale, letter grades, and weighted grading systems.

Letter Grade to GPA Conversion

Letter GradeGrade PointsPercentage (typical)
A4.093–100%
A-3.790–92%
B+3.387–89%
B3.083–86%
B-2.780–82%
C+2.377–79%
C2.073–76%
C-1.770–72%
D+1.367–69%
D1.063–66%
D-0.760–62%
F0.0Below 60%
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Understanding Your GPA

GPA is the standard way schools measure academic performance. It takes your letter grades, converts them to a numerical scale, and averages them — usually weighted by credit hours so that a 4-credit class counts more than a 1-credit class.

Most U.S. high schools and colleges use the 4.0 scale shown above. Some schools add plus/minus modifiers (A-, B+, etc.) while others use only whole letter grades.

Weighted vs. Unweighted GPA in Detail

Unweighted GPA (4.0 scale)

All classes are treated the same. An A in PE counts the same as an A in AP Chemistry. This is what most colleges use as their baseline for comparing applicants.

  • Maximum GPA: 4.0
  • Most commonly used by colleges for admissions
  • Doesn't account for course difficulty

Weighted GPA (5.0 scale)

Advanced courses receive a boost. This rewards students who challenge themselves with harder classes, even if they don't get a perfect A.

  • Honors: +0.5 (max 4.5 for an A)
  • AP/IB/College: +1.0 (max 5.0 for an A)
  • Varies by school district — always check local policy

How Colleges View Your GPA

Admissions officers look beyond the number. They consider the rigor of your course schedule, grade trends (improving grades are viewed favorably), and how your GPA compares to your school's average.

Many selective colleges recalculate GPAs on their own scale, sometimes only counting core academic subjects. Some disregard freshman year grades. The best approach is to take challenging courses that interest you and aim for your personal best.

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Frequently Asked Questions

What is the 4.0 GPA scale?
The 4.0 GPA scale is the most common grading system in the United States. Letter grades are converted to numerical values: A = 4.0, B = 3.0, C = 2.0, D = 1.0, and F = 0.0. Plus and minus modifiers adjust these values by approximately 0.3 points.
Is a 3.5 GPA good?
Yes, a 3.5 GPA is generally considered very good. It falls between an A- and B+ average and is competitive for most college admissions. Many scholarship programs require a minimum of 3.5 GPA.
How do colleges evaluate GPA?
Colleges typically recalculate GPAs on their own scale. They consider course rigor (AP, Honors, IB classes), grade trends over time, and how your GPA compares to other students at your school. Many use a holistic review process beyond just GPA numbers.
What's the difference between semester and cumulative GPA?
Semester GPA covers only the classes you took in a single semester. Cumulative GPA is a running average of all your classes across all semesters. Colleges primarily look at your cumulative GPA.

Related Tools

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