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.

Weighted scales change the ceiling, not the letters

When a school weights, it still records the letter grade; it adds points when computing the GPA. An A in an Honors class is worth 4.5 and in an AP class 5.0 under the most common scheme. That is why weighted GPAs above 4.0 are not errors, and why admissions offices recalculate an unweighted version for comparison.

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.