GPA Scale Chart - Percentage to Letter Grade to 4.0 GPA

Letter	GPA	Percentage	Honors	AP/IB
A+	4.0	97–100%	4.5	5.0
A	4.0	93–96%	4.5	5.0
A-	3.7	90–92%	4.2	4.7
B+	3.3	87–89%	3.8	4.3
B	3.0	83–86%	3.5	4.0
B-	2.7	80–82%	3.2	3.7
C+	2.3	77–79%	2.8	3.3
C	2.0	73–76%	2.5	3.0
C-	1.7	70–72%	2.2	2.7
D+	1.3	67–69%	1.8	2.3
D	1.0	63–66%	1.5	2.0
D-	0.7	60–62%	1.2	1.7
F	0.0	0–59%	0.5	1.0

Price	100% free, no sign-up
Input	Percentage or letter grade
Output	Letter grade, GPA points, percentage band, weighted values
Processing	Runs locally in your browser

What is GPA Scale Converter?

A GPA scale is the conversion table that turns the letter or percentage on a transcript into grade points. On the standard US unweighted 4.0 scale, grades fall into bands: 93% and above is an A worth 4.0, 90–92% an A- worth 3.7, and so on down to 60–62% for a D- worth 0.7. Schools that weight AP, IB and Honors courses add a bonus — commonly +0.5 or +1.0 — so the top of the scale becomes 5.0. This converter works in both directions: type a percentage to see its letter and points, or pick a letter to see its points and percentage band.

Common Uses for GPA Scale Converter

Translate a percentage from a foreign transcript into US grade points
Check what a letter grade is worth before calculating a GPA by hand
Compare a weighted 4.5 GPA with an unweighted one
Confirm the cut-offs a scholarship uses before applying

Percentage to GPA is a lookup, not a formula

There is no universal equation converting percentages to GPA points, because schools define their own bands: a 90% might be an A- at one school and an A at another. The table used here is the most common US convention, which is what college applications and scholarship portals generally expect when they ask you to self-report.

Percentage to GPA·GPA to Percentage

Weighted scales vary by school

A weighted GPA adds course-level points under a school's policy; it does not change the letter on the transcript. This calculator's example preset uses +0.5 for Honors and +1.0 for AP/IB, but districts can choose different bonuses, caps, and grade-point tables. CollegeVine also describes the +1.0 AP bonus as an example and notes that weighting rules vary. Use your school's published table when reporting a GPA. Source: https://www.collegevine.com/faq/19106/calculating-gpa-with-ap-classes.

Percentage bands are not universal

The displayed percentage-to-letter mapping is a reference convention. Schools may place the A cutoff at different percentages, omit plus/minus grades, or use a different point value for A+. When converting a transcript, use the institution's grade table; the calculator is an estimate when that policy is unknown.

Frequently Asked Questions

What letter is a 3.5 GPA?

3.5 sits between a B+ (3.3) and an A- (3.7), so it is roughly the midway point of those two bands — often described as a strong B+/low A- average. The average of a B+ and an A- is exactly 3.5.

Is a 3.0 GPA a B average?

Yes. 3.0 corresponds exactly to a B, and it is the most common minimum for graduate school and many scholarships, which is why it is treated as the standard benchmark.

Why do some schools use a 5.0 scale?

Because they weight advanced courses. On a 5.0 weighted scale an A in an AP class can be worth 5.0 while the same A in a regular class stays 4.0. The underlying letters are unchanged — only the bonus differs.

Is a 4.0 unweighted the maximum?

On the standard scale yes, because an A+ is usually also 4.0. A handful of schools award 4.3 for an A+, which is why a 4.2 unweighted GPA occasionally appears in admissions data.