Quick answer
A GPA of 3.63 on the 4.0 scale rounds to an A−. The calculator picks the nearest letter by comparing your GPA with each letter's grade points, using the mid-point between neighbouring letters as the cut-off.
A cumulative GPA is an average, so it rarely lands exactly on a letter's points. This converter answers the question 'which letter does this average correspond to?'
Related tools: Letter Grade to GPA Calculator: Grade points for a letter grade on the 4.0 scale. GPA Calculator: Calculate your GPA from letter grades and credit hours. Grade Calculator: Percentage grade from points earned and points possible.
How to use the GPA to Letter Grade Calculator
- Enter gPA (/ 4.0) (between 0 and 4.3).
- Press Calculate to see the result, and use Reset to start again.
| Input | What to enter | Allowed values |
|---|---|---|
| GPA | A number, in / 4.0 | ≥ 0, ≤ 4.3 |
Formula and method
Formula
Nearest letter on the 4.0 scale (mid-point thresholds)
Rounded to 2 decimal places for GPA, 2 for percentages.
Scale: A/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, D− 0.7, F 0.0. Each letter covers the GPA values closest to its points.
Worked examples
These examples are verified: each one is an automated test case that the live calculator must reproduce exactly.
Example 1
Inputs: GPA = 3.63.
| Result | Value |
|---|---|
| Letter grade | A- |
Example 2
Inputs: GPA = 2.
| Result | Value |
|---|---|
| Letter grade | C |
Example 3
Inputs: GPA = 0.2.
| Result | Value |
|---|---|
| Letter grade | F |
The first line is the headline result (letter grade). Rounded to 2 decimal places for GPA, 2 for percentages.
How the nearest letter is chosen
Each letter covers the GPA values closer to it than to its neighbours. A− is 3.7 and B+ is 3.3, so the boundary is 3.5: a GPA from 3.5 up to just below 3.85 maps to A−, and 3.63 sits comfortably inside.
The input accepts values from 0 to 4.3, because some schools award up to 4.3 for an A+. Anything above 4.0 is read as an A or A+.
A letter for a GPA is a summary, not a transcript entry
Employers and scholarship forms sometimes ask for a letter, but your official transcript reports the GPA itself. The letter returned here is only the closest match on the standard scale, not a grade any instructor awarded.
What happens with invalid input
These messages are produced by the calculator itself, so you know what to fix.
- GPA: entering "5" shows "GPA must be at most 4.3." beside that field and no result.
Choosing between the GPA to Letter Grade Calculator and similar calculators
Each row shows what a related calculator on this site asks for and what it returns, so you can pick the one that matches your question.
| Calculator | You enter | It returns |
|---|---|---|
| [Letter Grade to GPA Calculator](/education/letter-grade-to-gpa-calculator/) | letter grade | Grade points |
| [GPA Calculator](/education/gpa-calculator/) | letter grades and credit hours | Your GPA |
| [Grade Calculator](/education/grade-calculator/) | points earned and points possible | Grade |
| [Grade Curve Calculator](/education/grade-curve/) | scores, score the top student should get and curve | Curved scores |
| [Final Grade Calculator](/education/final-grade-calculator/) | current grade, grade you want and final exam weight | Score needed on the final |
Assumptions and limitations
- GPA between 0 and 4.3
If a required value is empty, not a number, or outside its allowed range, the form marks that field with a message and shows no result instead of a misleading number. The automated checks deliberately try invalid entries for gPA to confirm this.
Frequently asked questions
What GPA is a B?
A 3.0 corresponds to a B on the standard 4.0 scale; the range from about 2.85 to 3.15 maps to B.
What letter is 3.5?
3.5 sits on the boundary between B+ and A−; check the exact output for your decimal.
Does this include weighted GPAs?
No. It assumes the unweighted 4.0 scale. A weighted GPA above 4.0 maps to an A here, which may not reflect your school's rules.
What does the GPA to Letter Grade Calculator calculate?
Nearest letter grade for a GPA on the 4.0 scale. It returns Letter grade.
What formula does the GPA to Letter Grade Calculator use?
Nearest letter on the 4.0 scale (mid-point thresholds). Scale: A/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, D− 0.7, F 0.0.
What do I need to enter in the gPA to Letter Grade Calculator?
You enter GPA (/ 4.0).
How is the result rounded or limited?
Rounded to 2 decimal places for GPA, 2 for percentages. GPA between 0 and 4.3.
What is an example of a gPA to Letter Grade result?
With gPA 3.63, the letter grade is A-.
Related calculators
- Letter Grade to GPA Calculator — Grade points for a letter grade on the 4.0 scale.
- GPA Calculator — Calculate your GPA from letter grades and credit hours.
- Grade Calculator — Percentage grade from points earned and points possible.
- Grade Curve Calculator — Apply a flat or proportional curve to a set of scores.
- Final Grade Calculator — The score needed on a final exam to reach a target course grade.
- Weighted GPA Calculator — GPA with extra points for honors or advanced courses.
Sources
- Common US 4.0 unweighted grading convention; institutions may differ, so confirm with your school's registrar
Content last reviewed 2026-11-04. Formulas and worked examples are checked by automated tests against independently computed values.