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Official Percentage Grade Chart

US standard 10-point percentage grading scale with academic descriptions.

Verified Grading Boundaries
•Standard US Department of Education Mappings•Peer-Reviewed Quality Points
Points & Percentage Scoring

Points & Percentage Grade Calculator

Compute precise percentage, letter grade, and GPA points from points earned over points possible.

Percentage
90.0%
45 of 50 Points
Letter Grade
A-
Excellent
4.0 GPA
3.7
Standard Scale
Fraction
9 / 10
Simplified Ratio

Conversion Methodology

Converting between raw scores, percentages, and letter grades depends on whether your school utilizes a 10-point scale (standard in the United States) or a 7-point scale. Our tools default to the official 10-point rubric, ensuring exact alignment with collegiate admissions benchmarks.

Complete 10-Point Grade Conversion Table

LetterPercentage4.0 GPA5.0 AP GPA
A+97% – 100%4.05.0
A93% – 96.99%4.05.0
A-90% – 92.99%3.74.7
B+87% – 89.99%3.34.3
B83% – 86.99%3.04.0
B-80% – 82.99%2.73.7
C+77% – 79.99%2.33.3
C73% – 76.99%2.03.0
C-70% – 72.99%1.72.7
D+67% – 69.99%1.32.3
D60% – 66.99%1.02.0
F0% – 59.99%0.00.0

Authoritative References & Academic Standards

Vetted against official government, institutional, and collegiate guidelines

.org sourceOfficial Source
Academic Grading in the United States
Wikipedia (Academic Standards Archive)

Comprehensive historical and institutional documentation of standard 10-point scales, percentage cutoffs, and GPA conversion tables.

.org sourceOfficial Source
Collegiate Grading Systems & Transcript Evaluation
AACRAO (American Association of Collegiate Registrars and Admissions Officers)

National academic standards for undergraduate 4.0 quality points, credit-hour weighting, and transcript calculations.

.gov sourceOfficial Source
Uniform Public School Grading & Passing Policies
Texas Education Agency (TEA)

State education agency standards defining 70% passing cutoffs, secondary course credit minimums, and standard assessment rules.