The grade point converter instantly converts between letter grades, percentage scores, and GPA on both the 4.0 and weighted 5.0 scales. Toggle AP/honors weighting to see the impact on your GPA.
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Letter Grade
Percentage Range
4.0 GPA
Weighted GPA
Complete Grade Scale
| Grade | Percentage | 4.0 GPA |
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Understanding the Grade Point Scale
The grade point converter translates grades between the formats used by different schools and institutions. The standard US grading system uses letter grades (A-F), percentage scores (0-100%), and grade point values (0-4.0 or 0-5.0 weighted).
Unweighted vs. Weighted GPA
Unweighted GPA uses the standard 4.0 scale regardless of course difficulty. Weighted GPA adds 0.5-1.0 points to grades earned in AP, IB, or Honors courses. An A in an AP course would be 5.0 on a weighted scale, compared to 4.0 unweighted. Colleges often recalculate GPAs on their own scale, so check each school's policy.
Plus/Minus Grading
Many colleges use a plus/minus system: A+ (4.0 or 4.3), A (4.0), A- (3.7), B+ (3.3), B (3.0), B- (2.7), etc. Some schools treat A+ as 4.0 (same as A), others give 4.3 for A+. Check your school's specific policy, as it can affect your GPA calculation, especially for borderline grades.
Grade Conversion for Transfer Students
When transferring between colleges or applying to graduate school, you may need to convert grades between grading systems. This converter helps you understand how your grades translate. For international transcripts, keep in mind that a 9/10 in India is typically equivalent to a US A, not a B, due to different grading conventions.
Frequently Asked Questions
What is a 4.0 GPA in letter grade?
A 4.0 GPA corresponds to an A (90-100%) in the standard unweighted GPA scale. Some grading systems assign 4.0 to an A+ as well, though many cap A+ at 4.0. A 4.0 is the highest GPA on the standard unweighted scale.
What is a B+ in GPA?
A B+ letter grade equals a 3.3 on the standard 4.0 GPA scale, corresponding to approximately 87-89% (varies by school).
What is the difference between weighted and unweighted GPA?
Unweighted GPA is on a 4.0 scale regardless of course difficulty. Weighted GPA adds extra points for AP, IB, or honors courses — typically 1.0 point extra (so A in AP = 5.0). Weighted GPA can exceed 4.0. Most colleges recalculate your GPA on their own scale anyway.
Does an A- affect my GPA?
Yes. An A- is typically a 3.7 on the 4.0 scale, compared to an A (4.0) or A+ (4.0). A single A- in a 3-credit course, compared to an A, reduces a semester GPA by about 0.075 if you take 4 three-credit courses (from 4.0 to approximately 3.93).
What percentage is a C+?
A C+ letter grade corresponds to approximately 77-79% in most American grading systems, and equals a 2.3 on the 4.0 GPA scale.