README

A lightweight PHP library for calculating GPA, CGPA, and SGPA. Supports 4.0 and 5.0 grading scales.

Try the online tool: gpacalc.app

Installation

composer require gpacalcteam/cgpa-calculator

Usage

use GpaCalc\GpaCalculator;

// Calculate semester GPA
$courses = [
    ['grade' => 'A', 'credits' => 3],
    ['grade' => 'B+', 'credits' => 4],
    ['grade' => 'A-', 'credits' => 3],
];
$gpa = GpaCalculator::calculateGpa($courses); // 3.59

// Calculate cumulative GPA
$semesters = [
    ['gpa' => 3.5, 'credits' => 15],
    ['gpa' => 3.8, 'credits' => 16],
];
$cgpa = GpaCalculator::calculateCgpa($semesters); // 3.66

// Convert percentage to GPA
$gpa = GpaCalculator::percentageToGpa(88); // 3.3

// Convert GPA to letter grade
$letter = GpaCalculator::gpaToLetter(3.5); // "A-"

License

MIT