Letter Grade

Letter Grade Calculator

Enter a percentage to see its letter grade and GPA points, or pick a letter to see the percentage range and midpoint. Switch between the standard A–F scale and the common plus/minus scale.

Percentage

89.5% is aB

GPA points (4.0 scale)3.0

Standard A–F grade scale
Letter	Percentage	GPA points
A	90% – 100%	4.0
B	80% – 89.99%	3.0
C	70% – 79.99%	2.0
D	60% – 69.99%	1.0
F	0% – 59.99%	0.0

Percent to letter grade chart

Find any whole percentage from 60 to 100. The A–F column uses the 90/80/70/60 scale; the plus/minus column uses the 97/93/90/87/83/80/77/73/70/67/63/60 scale with its GPA points.

Percent	Letter (A–F scale)	Letter (plus/minus)	GPA points (plus/minus)
100%	A	A+	4.0
99%	A	A+	4.0
98%	A	A+	4.0
97%	A	A+	4.0
96%	A	A	4.0
95%	A	A	4.0
94%	A	A	4.0
93%	A	A	4.0
92%	A	A-	3.7
91%	A	A-	3.7
90%	A	A-	3.7
89%	B	B+	3.3
88%	B	B+	3.3
87%	B	B+	3.3
86%	B	B	3.0
85%	B	B	3.0
84%	B	B	3.0
83%	B	B	3.0
82%	B	B-	2.7
81%	B	B-	2.7
80%	B	B-	2.7
79%	C	C+	2.3
78%	C	C+	2.3
77%	C	C+	2.3
76%	C	C	2.0
75%	C	C	2.0
74%	C	C	2.0
73%	C	C	2.0
72%	C	C-	1.7
71%	C	C-	1.7
70%	C	C-	1.7
69%	D	D+	1.3
68%	D	D+	1.3
67%	D	D+	1.3
66%	D	D	1.0
65%	D	D	1.0
64%	D	D	1.0
63%	D	D	1.0
62%	D	D-	0.7
61%	D	D-	0.7
60%	D	D-	0.7
Below 60%	F	F	0.0

Letter Grade Calculator: Percent to Letter Grade, GPA and A–F Scale

Graduation cap beside a transcript and calculator, showing percent-to-letter-grade conversion.

A letter grade calculator converts any percentage into a letter and 4.0 GPA points, or shows the percentage range behind a letter. It works as a percent to letter grade calculator for high school and college classes, on the A–F grading scale most US schools use and on the common plus/minus version.

Understanding the A–F Grading Scale

How does the A to F grading scale work?

The A to F grading scale sorts percentages into five bands. On the common 10-point scale an A is 90–100%, a B is 80–89%, a C is 70–79%, a D is 60–69% and an F is anything below 60%. Each letter carries GPA points: A = 4.0, B = 3.0, C = 2.0, D = 1.0 and F = 0.0.

Letter grade percentage chart

A: 90–100% (4.0 GPA points)
B: 80–89% (3.0)
C: 70–79% (2.0)
D: 60–69% (1.0)
F: below 60% (0.0)

The plus/minus version splits each band into thirds: A+ starts at 97, A at 93, A- at 90, B+ at 87, B at 83, B- at 80, and so on down to D- at 60.

What percentage is an A grade?

On the standard scale an A is 90% or higher. On the plus/minus scale a plain A runs from 93% to 96.99%, with A- starting at 90% and A+ at 97%.

What percentage do you need to get an A?

Most classes need 90%, and some schools require 93%. Check your syllabus: under a 93 cutoff a 91.5% is an A-, not an A, and the rounding rule decides what happens to an 89.5%.

What percentage is a B grade?

A B is 80–89% on the standard scale. On the plus/minus scale a B- is 80–82.99%, a B is 83–86.99% and a B+ is 87–89.99%.

Percent to Letter Grade: How the Calculator Works

Enter the percentage. Use your unrounded course average if you have it.
Pick the standard or the plus/minus scale.
Read the letter, the GPA points and how far you are from the next cutoff.
To go the other way, choose a letter to see its percentage range and midpoint.

How do I calculate my letter grade?

First turn your score into a percentage: points earned ÷ points possible × 100. Then match the percentage to your scale. For example, 42 out of 50 is 42 ÷ 50 × 100 = 84%, which is a B on both common scales.

How do I convert points or a score to a letter grade?

Points, scores and numbers all work the same way: divide by the total possible, multiply by 100, and enter the percentage. If you have several assessments with different weights, build the course percentage in the weighted grade calculator first.

What Letter Grade Is My Score? Common Percentages

96% (48 out of 50): A on the standard scale (4.0), A on plus/minus (4.0)
93%: A (4.0) on both scales
88%: B (3.0) on the standard scale, B+ (3.3) on plus/minus
85%: B (3.0) on both scales
80%: B (3.0) on the standard scale, B- (2.7) on plus/minus
73%: C (2.0) on both scales
70% (35 out of 50): C (2.0) on the standard scale, C- (1.7) on plus/minus
66%: D (1.0) on both scales
60% (30 out of 50): D (1.0) on the standard scale, D- (0.7) on plus/minus

Is 80% what letter grade?

An 80% is a B on the standard scale and a B- on the plus/minus scale, because 80 is the lowest B- there. It is the bottom of the B range on both.

Is a 93% an A or a B?

A 93% is an A on both common scales. It is a B only if your school uses a very high A cutoff such as 94 or 95.

What letter grade is 70%, and is a 30 out of 50 a bad grade?

A 70% (35 out of 50) is a C on the standard scale and a C- on the plus/minus scale. A 30 out of 50 is 60%, a D or a D-, which passes at most schools but only just. For comparison, 48 out of 50 is 96%, an A.

What letter grade is an 85 in college?

An 85% is a B (3.0) at most colleges, on both the standard and the plus/minus scale. Some colleges publish their own table, so the course syllabus decides.

Letter Grade to GPA Calculator: Points on the 4.0 Scale

How do I convert a percentage to a 4.0 GPA?

Convert the percentage to a letter, then read the points for that letter. The calculator shows both at once. A 92% is an A (4.0) on the standard scale and an A- (3.7) on the plus/minus scale.

How many GPA points does each letter grade earn?

A+ and 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

Is GPA determined by letter grade?

Yes. Each course’s letter becomes grade points, the points are multiplied by the course’s credit hours, and the total is divided by the total credits. The percentage behind the letter is not part of the GPA, only the letter is.

Is a 3.9 GPA an A, and are all B’s a 3.5 GPA?

A 3.9 is an A average. With equal-credit courses, one B among ten A grades gives exactly 3.9. All B grades give a 3.0, not a 3.5: a 3.5 needs about half A grades and half B grades.

Is a 2.7 GPA a B-?

On the common plus/minus scale a 2.7 is worth a B-. A 2.75 sits slightly above a B- and below a B (3.0).

Will one C ruin a 4.0 GPA?

No. One C among ten equal-credit A courses gives a 3.8, and among forty courses it gives a 3.95. The more credits you have, the less a single grade moves your GPA.

Letter Grades for College, High School and Teachers

Colleges and universities often use the plus/minus scale and weight each course by its credit hours. Many high schools use the plain A–F scale, and some add extra points for honors or AP courses, which this calculator does not include. Teachers can use the same cutoff table to turn a class percentage into a report-card letter.

Outside the US the rules differ. Canadian schools often use a 4.0 or 4.3 letter scale that varies by province and university, and many Australian universities grade with High Distinction, Distinction, Credit and Pass instead of A–F. Use your institution’s published table for those.

Why Your School’s Scale May Differ

Seven-point scales that start an A at 93, cutoffs at 94 or 95, and an A+ worth 4.3 all exist, and so do different rounding rules. When your syllabus lists cutoffs, they override any generic chart, including this one.

From Letter Grade to GPA and Final Grade

A letter turns into grade points, and grade points are weighted by credit hours. Take the letters you find here to the GPA calculator to get your semester and cumulative GPA. To apply a curve before converting, use the grade curve calculator, and to find the final exam score you need for a target letter, use the final exam grade calculator.

Grade Scale FAQs

Letter Grade Calculator FAQs

Answers on percentage cutoffs, plus/minus scales, GPA points per letter and why your school’s scale may differ from the common one.

A 73% is a C, which is 2.0 GPA points on the 4.0 scale. On the plus/minus scale it is the lowest C (2.0), with 70 to 72.99 a C- (1.7). Your school’s scale decides, so check the syllabus.

On the common 10-point scale an A is 90–100%, a B is 80–89%, a C is 70–79%, a D is 60–69% and anything below 60% is an F. Some schools use 93, 83, 73 and 63 as the lower limits instead.

On the common plus/minus scale an A- covers 90 to 92.99%, an A covers 93 to 96.99% and an A+ starts at 97%. Check your syllabus because schools differ.

Use the range for that letter on your scale. If you need a single number, the midpoint is the usual choice: 85 for a B on the standard scale. The calculator shows both.

On most 4.0 scales both are 4.0. Some schools use 4.3 for an A+. Your registrar’s scale decides.

Only if your instructor rounds before assigning the letter. This calculator does not round for you: it uses the exact value you type, so you can see which side of the cutoff you are on.

On most scales a D (60%) is the lowest passing grade, and a D- on the plus/minus scale. Many colleges require a C or better for major courses and prerequisites, so a D may pass the course without counting toward your program.

Most classes need 90% for an A, and some schools require 93%. On a plus/minus scale 93% is a plain A and 90% is an A-. Check your syllabus, because the cutoff and the rounding rule are set by your school or instructor.

The A to F grading scale groups percentages into letters: A is 90–100%, B is 80–89%, C is 70–79%, D is 60–69% and F is below 60%. Each letter maps to GPA points from 4.0 for an A down to 0.0 for an F.

Yes. The standard and plus/minus cutoff tables on this page are a letter grade percentage chart you can print. For a chart that lists every possible score on a test of a given size, use the grading scale charts.

On the common plus/minus scale a B+ covers 87% to 89.99%, a B covers 83% to 86.99% and a B- covers 80% to 82.99%. On the standard A–F scale there is no B+, so the same 88% is simply a B.

On the common 4.0 scale an A is 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 and F 0.0. Your registrar may use a different table, so check the official scale.

Interactive Tools Available

Enter a percentage or pick a letter above to see its range, GPA points and full scale table.

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Built and maintained by Muhammad Mansoor Haidar, Easy Grade Tool. Formulas last checked October 6, 2026. See the methodology and corrections policy. Results are estimates; your teacher’s or school’s grading policy decides your official grade.