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Class Average & Distribution Calculator

Paste a column of student scores or grades to immediately calculate comprehensive class statistics, standard deviation, and distribution curves.

Classroom Teacher Tested
•Zero Server Transmission (FERPA Safe)•Verified Grading Mathematics
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

How Educators Use the Class Average

  1. Paste student scores separated by commas or line breaks.
  2. View instant summary stats: Mean, Median, Min, Max, and Standard Deviation.

Mathematical Logic

Calculates the arithmetic mean and population standard deviation.

\mu = \frac{\sum x_i}{N}, \quad \sigma = \sqrt{\frac{\sum (x_i - \mu)^2}{N}}

Classroom Application Example

Scenario: Scores: 72, 85, 88, 92, 95, 64, 80.

Mean = 82.28%, Median = 85.0%, StdDev = 9.88.

Result: Comprehensive score report generated.

Authoritative References & Academic Standards

Vetted against official government, institutional, and collegiate guidelines

.gov sourceOfficial Source
Family Educational Rights and Privacy Act (FERPA) Regulations
U.S. Department of Education

Federal regulations governing student education records, confidentiality, and the imperative for zero-server client computing.

.gov sourceOfficial Source
Student Privacy Policy Office (SPPO) Guidelines
U.S. Department of Education

Official federal resources for educators regarding student data protection and digital classroom privacy.

.org sourceOfficial Source
Assessment Standards for School Mathematics
National Council of Teachers of Mathematics (NCTM)

National research guidelines on rubric construction, formative grading, and equitable student achievement evaluation.