A GPA to letter grade converter maps a 4.0 grade point to its letter, and back. On the standard US scale, 4.0 is an A, 3.7 an A-, 3.3 a B+, 3.0 a B and 2.0 a C. Switch the direction to turn a letter grade back into its grade point. Exact cut-offs can vary slightly by school.
Calculations run in your browser. Inputs are not sent to our servers; anything you Save stays in this browser only.
Saved results (0)
How to Use the GPA to Letter Grade Converter
- Pick a direction: GPA to letter, or letter to GPA.
- Enter your GPA in the first field, or your letter grade in the second, to match the direction.
- Read the converted grade, its grade point and the scale.
Here is what each result means:
| Result | What it means |
|---|---|
| Converted grade | The letter for a GPA, or the grade point for a letter. |
| Grade point | The 4.0 value behind the grade. |
| Scale | The scale used, the standard US 4.0. |
What Is the GPA Letter Grade Scale?
The US grade point scale maps letter grades to points out of 4.0. An A is 4.0, an A- is 3.7, a B+ is 3.3, and so on down to F at 0.0. Colleges use these points to average grades into a GPA, so being able to move between a letter and its point is useful when you read a transcript or estimate a GPA.
Most schools use this standard mapping, though some add an A+ at 4.0 or 4.3 and set their own percentage cut-offs for each letter. This converter uses the widely accepted values and lets you switch direction.
How Does the GPA to Letter Grade Converter Work?
In one direction it places a grade point into its letter band; in the other it looks up the grade point for a letter.
A 4.0, A- 3.7, B+ 3.3, B 3.0, B- 2.7, C+ 2.3, C 2.0, C- 1.7, D+ 1.3, D 1.0, F 0.0- For GPA to letter, find the band your grade point falls in and read the letter.
- For letter to GPA, look up the grade point for that letter.
- Use the grade point when you average several grades into a GPA.
To average a full set of course grades into a GPA, use the GPA calculator.
GPA to Letter Grade Example
Suppose your GPA is 3.7. That sits in the A- band, so it converts to A-.
Going the other way, a B+ looks up to a grade point of 3.3. Notice the bands are not evenly spaced near the top, where A and A- are only 0.3 apart.
GPA to Letter Grade Conversion Table
The standard US 4.0 mapping. Some schools shift the percentage cut-offs a little.
| Letter | Grade point | Typical percentage |
|---|---|---|
| A | 4.0 | 93 to 100 |
| A- | 3.7 | 90 to 92 |
| B+ | 3.3 | 87 to 89 |
| B | 3.0 | 83 to 86 |
| B- | 2.7 | 80 to 82 |
| C+ | 2.3 | 77 to 79 |
| C | 2.0 | 73 to 76 |
| D | 1.0 | 63 to 66 |
| F | 0.0 | Below 60 |
Weighted vs Unweighted Letters
Letters map to points differently when a course is weighted.
| Course type | A is worth | Notes |
|---|---|---|
| Regular | 4.0 | Standard unweighted scale |
| Honors | 4.5 | Often plus 0.5 |
| AP or IB | 5.0 | Often plus 1.0 |
This converter uses the unweighted scale. For weighted GPAs, apply your school bonus to the grade point.
Factors That Change the Mapping
Plus and Minus Grades
Schools that do not use A- or B+ collapse everything to whole letters, which changes the points.
A-plus Handling
Some schools cap an A+ at 4.0, others set it at 4.3, which affects a top GPA.
Percentage Cut-offs
The percentage range for each letter can shift by a point or two between schools.
When to Use a GPA Letter Converter
Reading a Transcript
Translate grade points back to letters to sense-check a record.
Estimating a GPA
Turn expected letters into points before averaging them into a GPA.
Comparing Schools
Put grades on the same 4.0 footing when a school uses a different display.
Common Mistakes
1. Forgetting Plus and Minus
Treating a B+ as a plain B drops 0.3 of a grade point per course.
2. Mixing Weighted and Unweighted
Do not apply an Honors or AP bonus unless the course actually carries it.
3. Assuming Every School Uses A+
Many do not, and those that do may cap it at 4.0.
4. Using Percentage Cut-offs from Another School
Bands vary, so use your own school ranges.
5. Converting a Single Grade and Calling It a GPA
A GPA is the average of many grade points, not one letter.
Accuracy and Limitations
The mapping is applied exactly, but the bands are the standard scale, not your specific school policy.
What it converts accurately
- Standard letter to grade point values
- Grade point to the nearest letter band
- Both directions on the 4.0 scale
What it does not account for
- Weighted Honors, AP or IB bonuses
- School-specific percentage cut-offs
- A-plus values above 4.0
- Pass or fail and audit grades
How We Convert the Grade
Frequently Asked Questions
What letter grade is a 3.5 GPA?
A 3.5 GPA sits between a B+ and an A-. On many scales it rounds to an A- for a single course, but exact cut-offs vary by school.
Is a 3.7 GPA an A or A-?
On the standard scale, 3.7 is an A-. A straight A is 4.0, so 3.7 is the grade point for A-.
How do GPA points map to letters?
A is 4.0, A- is 3.7, B+ is 3.3, B is 3.0, B- is 2.7, C+ is 2.3, C is 2.0, and so on down to F at 0.0.
Does an A-plus count as 4.3?
It depends on the school. Some cap an A+ at 4.0, while others award 4.3, which can lift a weighted GPA above 4.0.
What GPA is all B grades?
Straight B grades give a 3.0 GPA, because each B is worth 3.0 grade points and the average of equal values is that value.
How do I convert a letter grade to GPA?
Look up the grade point for the letter: A is 4.0, B is 3.0, C is 2.0, and add or subtract 0.3 for plus and minus grades. Switch this tool to Letter to GPA to do it instantly.
Are weighted grades different?
Yes. Honors and AP or IB courses often add 0.5 or 1.0 to the grade point, so an A in an AP class can be worth 5.0.
Why do schools use different cut-offs?
Each school sets its own percentage ranges for each letter, so the same percentage can be a B+ at one school and an A- at another.
Is my information saved?
No. The conversion runs entirely in your browser and nothing you enter is stored or sent anywhere, unless you choose Save, which keeps the result only in this browser.
Sources
- Academic grading in the United States (Wikipedia, the 4.0 letter scale).
- Grading systems by country (Wikipedia, cross-country comparison).
- Weighted mean explained (Maths Is Fun).
Related Calculators
Looking for more study and academic tools?
Explore all education calculatorsThis converter uses the standard US 4.0 letter bands. Individual schools set their own cut-offs, so confirm the exact bands with your institution grading policy. Spotted an error? Let us know.
Author
Shakeel Muzaffar is the Founder and Editor-in-Chief of MultiCalculators.com, bringing over 15 years of experience in digital publishing, product strategy, and online tool development. He leads the platform's editorial vision, ensuring every calculator meets strict standards for accuracy, usability, and real-world value. Shakeel personally oversees content quality, formula verification workflows, and the platform's commitment to publishing tools that are genuinely useful for students, professionals, and everyday users worldwide.
