4.0 vs 4.33 GPA Scale Comparison
Compare standard 4.00 and 4.33 collegiate grading systems, understand A+ registrar policies, and explore how graduate admissions committees standardize grade point averages.
The Core Difference
A+ = 4.00 | A = 4.00 | A− = 3.67
Capped at 4.00 by institutions including Rice University.
A+ = 4.33 | A = 4.00 | A− = 3.67
Adopted by Columbia and Iowa (Cornell uses 4.30); used by LSAC law admissions.
1. Understanding the Scale Architectures
In American collegiate grading, both the 4.00 and 4.33 systems are based on the same underlying increment: one full letter step equals 1.0 point, with plus and minus modifiers representing increments of approximately one-third of a point (0.33).
The defining divergence between the two scales is how they treat the highest possible letter mark: the A+ grade.
2. The A+ Policy Divergence
Why do universities treat an A+ differently?
The 4.0 Cap Philosophy
Institutions capping at 4.00 argue that an ‘A’ represents complete mastery of course objectives. While instructors may award an A+ on homework or exams for exceptional work, the registrar records it as 4.00 quality points to maintain a strict mathematical ceiling.
The 4.33 Reward Philosophy
Institutions adopting 4.33 point values argue that students performing at an extraordinary, top-of-cohort level deserve transcript recognition. Awarding 4.33 also allows an A+ to mathematically offset an A− (3.67), bringing the two-course average back to an even 4.00.
3. Full Side-by-Side Grade Point Table
Compare standard grade point values across both systems:
| Letter Grade | Common 4.0 Reference | 4.33 A+ Reference | Standard Percentage Range |
|---|---|---|---|
| A+ | 4.00 | 4.33 | 97 – 100% |
| A | 4.00 | 4.00 | 93 – 96% |
| A− | 3.67 | 3.67 | 90 – 92% |
| B+ | 3.33 | 3.33 | 87 – 89% |
| B | 3.00 | 3.00 | 83 – 86% |
| B− | 2.67 | 2.67 | 80 – 82% |
| C+ | 2.33 | 2.33 | 77 – 79% |
| C | 2.00 | 2.00 | 73 – 76% |
| C− | 1.67 | 1.67 | 70 – 72% |
| D+ | 1.33 | 1.33 | 67 – 69% |
| D | 1.00 | 1.00 | 63 – 66% |
| D− | 0.67 | 0.67 | 60 – 62% |
| F | 0.00 | 0.00 | Below 60% |
4. Prominent Institutional Examples
Different universities document their official grading scales in public catalogs:
- Columbia University: Assigns 4.33 points to an A+, allowing undergraduate GPAs to exceed 4.00.
- University of Iowa: Awards 4.33 points for A+ grades on official transcripts.
- Cornell University: Maintains an official grading scale where an A+ is awarded 4.30 grade points (rather than the standard 4.33 step).
- Rice University: Specifically documents that an A+ receives 4.00 grade points, maintaining an absolute 4.00 ceiling.
- Portland State University: Truncates all official GPAs to two decimal digits without rounding.
5. International Students & Credential Conversions
If your academic credentials originate outside the United States, major university admissions offices—such as The Ohio State University Graduate and Professional Admissions—explicitly instruct applicants not to convert their grades to a US 4.0 scale.
Grading philosophies and distributions vary substantially worldwide. Direct formulaic percentage conversions can misrepresent academic standing because credential evaluators evaluate degrees in the context of country-specific standards and division classifications. Applicants should always submit original, official transcripts in the institution's native format.
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Quick Answers
Frequently Asked Questions
Primary Sources & Registrar Policies
Official registrar documentation and university catalog policies defining 4.00 and 4.33 grading systems.
- Rice University Office of the Registrar
Grade definitions & policy capping A+ at 4.00 quality points.
- Columbia University College Bulletin
Academic regulations establishing A+ at 4.33 grade points.
- University of Iowa Office of the Registrar
Grading system documentation specifying 4.33 quality points for A+.
- Cornell University Courses of Study
Official grading scale documenting A+ at 4.30 grade points.
- Portland State University Office of the Registrar
Official grading rules specifying GPA truncation to two decimal places.
- The Ohio State University Graduate Admissions
Official GPA calculation guidance & international credential evaluation policies.