4.0 Weighted Gpa Calculator

4.0 Weighted GPA Calculator: Calculate Your Academic Standing :root { –primary-color: #004a99; –success-color: #28a745; –background-color: #f8f9fa; –text-color: #333; –border-color: #ccc; –card-background: #fff; –shadow: 0 2px 4px rgba(0, 0, 0, 0.1); } body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; background-color: var(–background-color); color: var(–text-color); margin: 0; padding: 20px; line-height: 1.6; } .container { max-width: 960px; margin: 0 auto; background-color: var(–card-background); padding: 30px; border-radius: 8px; box-shadow: var(–shadow); display: flex; flex-direction: column; } h1, h2, h3 { color: var(–primary-color); text-align: center; margin-bottom: 20px; } h1 { font-size: 2.5em; } h2 { font-size: 1.8em; margin-top: 30px; border-bottom: 2px solid var(–primary-color); padding-bottom: 10px; } h3 { font-size: 1.4em; margin-top: 25px; } .calculator-section { margin-bottom: 40px; padding: 25px; border: 1px solid var(–border-color); border-radius: 8px; 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4.0 Weighted GPA Calculator

Calculate your weighted Grade Point Average accurately and understand its impact on your academic journey.

Weighted GPA Calculator

Enter the number of credit hours for the course (e.g., 3, 4.5).
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) Select the grade received in the course.
Standard (1.0x) Honors/AP/IB (1.5x) Advanced/Dual Enrollment (2.0x) Select the weighting for the course (e.g., Honors, AP, Standard).

Your Weighted GPA Results

–.–
Total Quality Points: –.–
Total Weighted Credit Hours: –.–
Number of Courses: 0

Formula: Weighted GPA = Sum of (Grade Points * Credit Hours * Weighting Factor) / Sum of (Credit Hours * Weighting Factor)

Course Breakdown
Course Grade Credit Hours Weighting Grade Points Weighted Points Weighted Credit Hours

Add courses to see a detailed breakdown.

Distribution of Weighted Credit Hours by Course Weighting

What is a 4.0 Weighted GPA?

A **4.0 weighted GPA** represents a student's academic achievement where the highest possible average grade point is achieved, taking into account the difficulty of courses through a weighting system. Unlike an unweighted GPA, which typically assigns a maximum of 4.0 points for an 'A' grade across all courses, a weighted GPA allows students to potentially exceed a 4.0. This is done by assigning higher point values to more challenging courses, such as Advanced Placement (AP), International Baccalaureate (IB), honors, or dual enrollment classes. For instance, a standard 'A' might be worth 4.0 points, but an 'A' in an AP course might be weighted as 5.0 points. The "4.0 weighted GPA" phrase often refers to the target or a perfect score within a *specific* weighting system, rather than a universal scale. The maximum achievable weighted GPA can exceed 4.0, depending on the school's specific weighting policies.

Who Should Use a Weighted GPA Calculator?

This **4.0 weighted GPA calculator** is an invaluable tool for high school students aiming for college admissions, scholarships, or simply tracking their academic progress. It's particularly useful for:

  • Students in rigorous academic programs: Those taking AP, IB, honors, or dual enrollment courses need to understand how these courses affect their overall GPA.
  • College-bound students: Many universities consider weighted GPAs in their admissions process, especially for competitive programs.
  • Scholarship applicants: Numerous scholarships have GPA requirements, and understanding your weighted GPA is crucial for eligibility.
  • Students aiming for academic honors: Programs like the honor roll or national honor society often use weighted GPAs.
  • Anyone curious about academic standing: It provides a clear picture of academic performance, considering course difficulty.

Common Misconceptions about Weighted GPA

  • "A 4.0 weighted GPA is the absolute maximum." This is often not true. Depending on the weighting scale (e.g., 1.5x for AP, 2.0x for D.E.), a student with all 'A's in weighted courses could achieve a GPA significantly higher than 4.0.
  • "All schools weight courses the same." Weighting policies vary drastically between high schools. Some might weight AP courses at 1.5x, others at 1.2x, and some may not offer weighting at all.
  • "Colleges only look at weighted GPA." While many consider it, some colleges recalculate GPAs on their own scale or focus more on unweighted GPA plus course rigor. It's essential to check each institution's specific requirements.
  • "Weighted GPA is the only factor in admissions." Admissions decisions are holistic, considering test scores, essays, extracurriculars, recommendations, and more, in addition to GPA and course rigor.

4.0 Weighted GPA Calculator Formula and Mathematical Explanation

The core of calculating a weighted GPA lies in assigning points to grades, multiplying those points by the course's credit hours and its specific weighting factor, and then averaging these weighted values.

Step-by-Step Calculation

  1. Assign Base Grade Points: Each letter grade is assigned a numerical value (e.g., A=4.0, B=3.0, C=2.0, D=1.0, F=0.0). Some schools use variations like A-=3.7, B+=3.3, etc.
  2. Determine Course Weighting: Assign a multiplier based on the course's difficulty level (e.g., Standard=1.0, Honors=1.5, AP/IB=1.5 or 2.0).
  3. Calculate Weighted Grade Points per Course: Multiply the base grade points by the course's credit hours and its weighting factor.
    Weighted Points = Grade Points × Credit Hours × Weighting Factor
  4. Calculate Weighted Credit Hours per Course: Multiply the course's credit hours by its weighting factor.
    Weighted Credit Hours = Credit Hours × Weighting Factor
  5. Sum Total Weighted Points: Add up the 'Weighted Points' for all courses.
  6. Sum Total Weighted Credit Hours: Add up the 'Weighted Credit Hours' for all courses.
  7. Calculate Weighted GPA: Divide the total weighted points by the total weighted credit hours.
    Weighted GPA = Sum of (Weighted Points) / Sum of (Weighted Credit Hours)

Variable Explanations

Here are the key variables involved in calculating your weighted GPA:

Variables in Weighted GPA Calculation
Variable Meaning Unit Typical Range
Grade Points (GP) Numerical value assigned to a letter grade (e.g., A=4.0). Points 0.0 – 4.0 (or higher with advanced grading scales)
Credit Hours (CH) The academic weight assigned to a course, typically based on class time. Hours 0.5 – 8+
Weighting Factor (WF) A multiplier applied to standard grades based on course difficulty (e.g., AP, Honors). Multiplier (e.g., 1.0, 1.5, 2.0) 1.0 – 2.0 (common)
Weighted Grade Points (WGP) The grade points earned, adjusted for credit hours and course weighting. (GP * CH * WF) Weighted Points Varies
Weighted Credit Hours (WCH) The course's credit hours, adjusted for its weighting factor. (CH * WF) Weighted Hours Varies
Weighted GPA The final calculated average grade point, reflecting course difficulty. GPA Scale (e.g., 0.0 – 5.0+) 0.0 – Potentially > 4.0

Practical Examples (Real-World Use Cases)

Let's illustrate how the **4.0 weighted GPA calculator** works with practical scenarios.

Example 1: High School Student Pursuing AP Courses

Sarah is a junior taking a mix of standard and advanced courses. She wants to know her current weighted GPA.

Course Inputs:

  • English IV (Standard): Grade A (4.0), Credit Hours: 4, Weighting: 1.0x
  • AP Calculus BC: Grade A- (3.7), Credit Hours: 4, Weighting: 1.5x
  • AP Physics C: Grade B+ (3.3), Credit Hours: 4, Weighting: 1.5x
  • US History (Standard): Grade A (4.0), Credit Hours: 3, Weighting: 1.0x
  • Spanish III (Honors): Grade B (3.0), Credit Hours: 3, Weighting: 1.5x

Calculations:

  • English IV: WGP = 4.0 * 4 * 1.0 = 16.0; WCH = 4 * 1.0 = 4.0
  • AP Calc: WGP = 3.7 * 4 * 1.5 = 22.2; WCH = 4 * 1.5 = 6.0
  • AP Physics: WGP = 3.3 * 4 * 1.5 = 19.8; WCH = 4 * 1.5 = 6.0
  • US History: WGP = 4.0 * 3 * 1.0 = 12.0; WCH = 3 * 1.0 = 3.0
  • Spanish III: WGP = 3.0 * 3 * 1.5 = 13.5; WCH = 3 * 1.5 = 4.5

Totals:

  • Total Weighted Points = 16.0 + 22.2 + 19.8 + 12.0 + 13.5 = 83.5
  • Total Weighted Credit Hours = 4.0 + 6.0 + 6.0 + 3.0 + 4.5 = 23.5

Result:

  • Weighted GPA = 83.5 / 23.5 = 3.55

Interpretation: Sarah's weighted GPA is 3.55. While she has excellent grades (mostly A's), the AP courses, though weighted higher, brought her average down slightly from a perfect score due to the B+ in AP Physics and B in Spanish III. This result helps her understand her academic standing relative to college expectations.

Example 2: Student Focusing on Standard Courses

Mark is in his sophomore year and primarily taking standard-level classes, with one honors course.

Course Inputs:

  • Algebra II (Standard): Grade B+ (3.3), Credit Hours: 3, Weighting: 1.0x
  • Biology (Standard): Grade A (4.0), Credit Hours: 3, Weighting: 1.0x
  • World Geography (Standard): Grade A- (3.7), Credit Hours: 3, Weighting: 1.0x
  • English II (Honors): Grade C+ (2.3), Credit Hours: 3, Weighting: 1.5x

Calculations:

  • Algebra II: WGP = 3.3 * 3 * 1.0 = 9.9; WCH = 3 * 1.0 = 3.0
  • Biology: WGP = 4.0 * 3 * 1.0 = 12.0; WCH = 3 * 1.0 = 3.0
  • World Geo: WGP = 3.7 * 3 * 1.0 = 11.1; WCH = 3 * 1.0 = 3.0
  • English II (Honors): WGP = 2.3 * 3 * 1.5 = 10.35; WCH = 3 * 1.5 = 4.5

Totals:

  • Total Weighted Points = 9.9 + 12.0 + 11.1 + 10.35 = 43.35
  • Total Weighted Credit Hours = 3.0 + 3.0 + 3.0 + 4.5 = 13.5

Result:

  • Weighted GPA = 43.35 / 13.5 = 3.21

Interpretation: Mark's weighted GPA is 3.21. His strong performance in standard courses is slightly pulled down by the lower grade in his honors English class. This calculation highlights the impact of even one challenging course grade on the overall weighted average. He might consider strategies to improve his performance in honors-level subjects.

How to Use This 4.0 Weighted GPA Calculator

Our **4.0 weighted GPA calculator** is designed for ease of use. Follow these simple steps to get your accurate weighted GPA:

  1. Input Course Details: For each course you've taken or are currently taking, enter the following:
    • Course Name (Optional): Helps you keep track of your entries.
    • Credit Hours: The number of credits assigned to the course (usually between 3-5 per semester/year).
    • Grade: Select the letter grade you received (e.g., A, B+, C-). The calculator automatically converts these to the standard point values.
    • Weighting: Choose the appropriate weighting factor for the course. 'Standard' courses usually have a 1.0x multiplier. 'Honors', 'AP', 'IB', or 'Dual Enrollment' courses typically have higher multipliers (e.g., 1.5x or 2.0x), as defined by your school's policy. If unsure, consult your school's academic handbook or counselor.
  2. Add Each Course: Click the "Add Course" button after entering the details for a single course. The table below the calculator will update, and the results will recalculate automatically.
  3. Add Multiple Courses: Repeat step 1 and 2 for all relevant courses to build a comprehensive picture of your academic record.
  4. Review Results: Once all courses are added, check the 'Results Container':
    • Main Result (Weighted GPA): This is your overall weighted GPA, prominently displayed.
    • Intermediate Values: See your Total Quality Points, Total Weighted Credit Hours, and the Number of Courses calculated.
    • Course Breakdown Table: Review a detailed table showing the calculations for each individual course.
    • Chart: Visualize the distribution of your weighted credit hours based on course weighting.
  5. Copy Results: Use the "Copy Results" button to save or share your calculated GPA and key metrics.
  6. Reset: If you need to start over or correct an entry, click the "Reset Calculator" button. This will clear all entered courses and reset the results to their default state.

How to Read Results and Make Decisions

Your calculated weighted GPA provides a quantitative measure of your academic performance, factoring in course rigor.

  • Compare to Benchmarks: Check college admission requirements, scholarship eligibility criteria, or school honor roll standards.
  • Identify Strengths and Weaknesses: Analyze the course breakdown table and chart. Are your highest weighted points coming from challenging courses? Are lower grades in weighted courses significantly impacting your GPA?
  • Set Academic Goals: Use the results to set targets for future semesters. For example, if your goal is a 3.8 GPA and you're currently at 3.5, you know you need to aim for higher grades, especially in weighted courses.
  • Course Selection Strategy: Understand how choosing specific types of courses (AP vs. Standard) impacts your GPA. Balance challenging courses with courses where you can consistently achieve high grades.

Key Factors That Affect Weighted GPA Results

Several elements influence your weighted GPA calculation. Understanding these factors is crucial for effective academic planning.

  1. Course Rigor & Weighting Policy: This is the most significant factor. The multiplier (weighting factor) applied to AP, IB, honors, or dual enrollment courses directly inflates the potential grade points earned. A school's specific policy on how much each type of course is weighted is paramount. A higher multiplier means a greater impact on the overall GPA for a given grade.
  2. Grades Earned: While weighting adds potential, the actual grade received is fundamental. A high weighting factor cannot compensate for consistently low grades. An 'A' in an AP course contributes significantly more than an 'A' in a standard course, but a 'C' in an AP course might yield a lower weighted GPA than a 'B' in a standard course.
  3. Credit Hours: Courses with more credit hours naturally carry more weight in the GPA calculation. A 'B' (3.0) in a 4-credit standard course contributes 12 grade points (3.0 * 4), while a 'B' in a 3-credit standard course contributes 9 grade points (3.0 * 3). The impact is amplified when weighting is involved.
  4. Consistency Across Semesters/Years: Your GPA is a cumulative measure. A single semester's performance affects the overall GPA, but maintaining a high level of achievement consistently across multiple years builds a stronger academic record. Improving grades over time demonstrates growth.
  5. School's Grading Scale: Different schools use varied scales for converting letter grades to points (e.g., A=4.0 vs. A=4.33, or including +/- grades like B+=3.3). The specific point values used by your high school directly impact the raw grade points before weighting.
  6. Accuracy of Input Data: As with any calculation, the accuracy of the inputs is critical. Ensure you are using the correct credit hours, the precise grade received, and the accurate weighting factor as per your school's official policy. Incorrect data entered into the calculator will lead to a misleading GPA.
  7. Minimum Grade Requirements for Weighting: Some schools only apply weighting factors to grades of 'C' or better. Grades below 'C' might be calculated using the standard 1.0x multiplier regardless of the course type. Always verify your school's specific rules.

Frequently Asked Questions (FAQ)

What is the difference between weighted and unweighted GPA?
An unweighted GPA uses a standard scale (typically 0-4.0) where all courses are treated equally, regardless of difficulty. A weighted GPA assigns higher point values to more challenging courses (like AP or Honors), allowing the GPA to potentially exceed 4.0.
Can my weighted GPA be higher than 4.0?
Yes, absolutely. If your school weights AP or honors courses more heavily (e.g., 1.5x or 2.0x), earning an 'A' (4.0) in such a course could result in weighted grade points that push your overall GPA above 4.0.
How do colleges view weighted GPA?
Colleges often consider both weighted and unweighted GPAs. They use the weighted GPA to gauge academic rigor and the unweighted GPA for a standardized comparison. Many selective colleges will recalculate GPAs based on their own standards, but they expect applicants to take challenging courses appropriate for their high school.
What if my school doesn't have an official weighting system?
If your school does not officially weight courses, you would calculate your GPA using the standard unweighted scale. However, for college applications, demonstrating rigor through course selection is still vital. Some colleges may assign their own weighting internally.
How accurate is this calculator?
This calculator is accurate based on the standard formula for weighted GPA. However, it relies on the input data being correct and uses common weighting factors. Always confirm the specific grading and weighting policies of your high school for the most precise calculation.
What does a 3.5 weighted GPA mean?
A 3.5 weighted GPA generally indicates strong academic performance, especially if achieved in a curriculum including challenging courses. It often meets or exceeds the requirements for many scholarships and admission to mid-tier universities. The specific interpretation depends on the context of the courses taken and the institution's expectations.
Does a D grade in an AP course hurt my GPA significantly?
Yes, a low grade like a 'D' in a weighted course can have a substantial negative impact. While the weighting factor might slightly mitigate the point loss compared to a standard course, the low numerical value assigned to a 'D' grade severely reduces the total quality points, pulling down the overall GPA considerably.
Should I prioritize weighted courses even if I might get a lower grade?
This is a strategic decision. Colleges value rigor, so taking appropriately challenging courses is important. However, consistently earning grades significantly below a 'B' in weighted courses might be less beneficial than earning strong 'A's or 'B+'s in standard or honors courses. Aim for a balance that allows you to demonstrate both capability and consistent high achievement.

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var tableBody = document.querySelector("#courseTable tbody"); var tableMessage = document.getElementById("tableMessage"); var courseName = courseNameInput.value || "Course " + (courses.length + 1); var creditHours = parseFloat(creditHoursInput.value); var grade = gradeSelect.value; var weighting = parseFloat(weightingSelect.value); var validCreditHours = validateInput(creditHoursInput, 0, 20); if (!validCreditHours) { return; } if (isNaN(creditHours) || creditHours <= 0) { displayError(creditHoursInput, "Please enter a valid number of credit hours."); return; } var gradePoint = getGradePoint(gradeSelect.options[gradeSelect.selectedIndex].text.split(' ')[0]); // Extract base grade point var weightedGradePoints = gradePoint * creditHours * weighting; var weightedCreditHours = creditHours * weighting; courses.push({ name: courseName, grade: gradeSelect.options[gradeSelect.selectedIndex].text, creditHours: creditHours, weighting: weighting, gradePoint: gradePoint, weightedGradePoints: weightedGradePoints, weightedCreditHours: weightedCreditHours }); renderTable(); calculateGpa(); updateChart(); // Clear inputs for next entry courseNameInput.value = ""; creditHoursInput.value = "3"; // Reset to default gradeSelect.value = "4.0"; weightingSelect.value = "1.0"; if (tableMessage) { tableMessage.style.display = 'none'; } } function renderTable() { var tableBody = document.querySelector("#courseTable tbody"); tableBody.innerHTML = ""; // Clear existing rows for (var i = 0; i < courses.length; i++) { var course = courses[i]; var row = tableBody.insertRow(); row.innerHTML = "" + course.name + "" + "" + course.grade + "" + "" + course.creditHours.toFixed(1) + "" + "" + course.weighting.toFixed(1) + "x" + "" + course.gradePoint.toFixed(2) + "" + "" + course.weightedGradePoints.toFixed(2) + "" + "" + course.weightedCreditHours.toFixed(2) + ""; } } function calculateGpa() { var totalWeightedGradePoints = 0; var totalWeightedCreditHours = 0; var numberOfCourses = courses.length; for (var i = 0; i 0) { weightedGpa = totalWeightedGradePoints / totalWeightedCreditHours; } document.getElementById("mainGpaResult").textContent = weightedGpa.toFixed(2); document.getElementById("totalQualityPoints").querySelector("span").textContent = totalWeightedGradePoints.toFixed(2); document.getElementById("totalCreditHours").querySelector("span").textContent = totalWeightedCreditHours.toFixed(2); document.getElementById("numberOfCourses").querySelector("span").textContent = numberOfCourses; return weightedGpa; } function updateChart() { var ctx = document.getElementById('gpaChart').getContext('2d'); // Destroy previous chart instance if it exists if (gpaChartInstance) { gpaChartInstance.destroy(); } var standardHours = 0; var honorsHours = 0; var apIbHours = 0; var otherHours = 0; // For weights not explicitly defined, though our options are limited for (var i = 0; i < courses.length; i++) { if (courses[i].weighting === 1.0) { standardHours += courses[i].weightedCreditHours; } else if (courses[i].weighting === 1.5) { honorsHours += courses[i].weightedCreditHours; // Grouping Honors and AP/IB for 1.5 } else if (courses[i].weighting === 2.0) { apIbHours += courses[i].weightedCreditHours; // Assuming 2.0 is for advanced/dual enrollment } else { otherHours += courses[i].weightedCreditHours; } } var chartData = { labels: ['Standard (1.0x)', 'Honors/AP (1.5x)', 'Advanced (2.0x)'], datasets: [{ label: 'Weighted Credit Hours', data: [standardHours, honorsHours, apIbHours], backgroundColor: [ 'rgba(0, 74, 153, 0.6)', // Primary color 'rgba(40, 167, 69, 0.6)', // Success color 'rgba(108, 117, 125, 0.6)' // Secondary color ], borderColor: [ 'rgba(0, 74, 153, 1)', 'rgba(40, 167, 69, 1)', 'rgba(108, 117, 125, 1)' ], borderWidth: 1 }] }; gpaChartInstance = new Chart(ctx, { type: 'bar', // Changed to bar chart for better comparison data: chartData, options: { responsive: true, maintainAspectRatio: false, scales: { y: { beginAtZero: true, title: { display: true, text: 'Total Weighted Credit Hours' } }, x: { title: { display: true, text: 'Course Weighting Factor' } } }, plugins: { legend: { display: true, position: 'top', }, title: { display: true, text: 'Distribution of Weighted Credit Hours by Course Type' } } } }); } function resetCalculator() { courses = []; document.getElementById("courseName").value = ""; document.getElementById("creditHours").value = "3"; document.getElementById("grade").value = "4.0"; document.getElementById("weighting").value = "1.0"; document.querySelector("#courseTable tbody").innerHTML = ""; document.getElementById("tableMessage").style.display = 'block'; // Clear errors var errorElements = document.querySelectorAll(".error-message"); for (var i = 0; i < errorElements.length; i++) { errorElements[i].textContent = ""; errorElements[i].style.display = "none"; } // Reset results document.getElementById("mainGpaResult").textContent = "–.–"; document.getElementById("totalQualityPoints").querySelector("span").textContent = "–.–"; document.getElementById("totalCreditHours").querySelector("span").textContent = "–.–"; document.getElementById("numberOfCourses").querySelector("span").textContent = "0"; // Reset chart if (gpaChartInstance) { gpaChartInstance.destroy(); gpaChartInstance = null; // Ensure it's nullified } var chartCanvas = document.getElementById('gpaChart'); if(chartCanvas){ var ctx = chartCanvas.getContext('2d'); ctx.clearRect(0, 0, chartCanvas.width, chartCanvas.height); // Clear canvas manually if Chart.js is not available or fails } document.getElementById("chartCaption").textContent = "Add courses to see a distribution chart."; } function copyResults() { var mainGpa = document.getElementById("mainGpaResult").textContent; var totalQualityPoints = document.getElementById("totalQualityPoints").querySelector("span").textContent; var totalWeightedCreditHours = document.getElementById("totalCreditHours").querySelector("span").textContent; var numberOfCourses = document.getElementById("numberOfCourses").textContent.replace('Number of Courses: ', ''); var assumptions = "Key Assumptions:\n"; var hasWeightedCourses = false; for (var i = 0; i 0) { textToCopy += "Course\tGrade\tCredit Hours\tWeighting\tGrade Points\tWeighted Points\tWeighted Credit Hours\n"; rows.forEach(function(row) { var cells = row.querySelectorAll("td"); textToCopy += cells[0].innerText + "\t" + cells[1].innerText + "\t" + cells[2].innerText + "\t" + cells[3].innerText + "\t" + cells[4].innerText + "\t" + cells[5].innerText + "\t" + cells[6].innerText + "\n"; }); } else { textToCopy += "No courses added yet.\n"; } textToCopy += "\n" + assumptions; var textarea = document.createElement("textarea"); textarea.value = textToCopy; textarea.style.position = "fixed"; textarea.style.left = "-9999px"; document.body.appendChild(textarea); textarea.focus(); textarea.select(); try { var successful = document.execCommand('copy'); var msg = successful ? 'Results copied successfully!' : 'Failed to copy results.'; // Simple feedback, could be improved with a temporary notification console.log(msg); } catch (err) { console.error('Unable to copy results.', err); } document.body.removeChild(textarea); } function displayError(inputElement, message) { var errorElement = document.getElementById(inputElement.id + "Error"); if (errorElement) { errorElement.textContent = message; errorElement.style.display = "block"; } } // Initial calculation and chart setup on load if needed window.onload = function() { // Initial calculation for display defaults if any calculateGpa(); updateChart(); // Setup empty chart structure // Ensure canvas exists before trying to get context var canvas = document.getElementById('gpaChart'); if (canvas) { var ctx = canvas.getContext('2d'); // Optionally, draw a placeholder or instruction on the canvas ctx.font = "16px Arial"; ctx.fillStyle = "#6c757d"; ctx.textAlign = "center"; ctx.fillText("Add courses to generate chart.", canvas.width / 2, canvas.height / 2); } else { console.error("Canvas element with ID 'gpaChart' not found."); } }; // Add Chart.js library dynamically if not present in the HTML if (typeof Chart === 'undefined') { var script = document.createElement('script'); script.src = 'https://cdn.jsdelivr.net/npm/chart.js'; script.onload = function() { console.log('Chart.js loaded.'); // Re-initialize chart after library is loaded if (courses.length > 0) { updateChart(); } else { // Set initial chart state if no courses yet var canvas = document.getElementById('gpaChart'); if(canvas){ var ctx = canvas.getContext('2d'); ctx.font = "16px Arial"; ctx.fillStyle = "#6c757d"; ctx.textAlign = "center"; ctx.fillText("Add courses to generate chart.", canvas.width/2, canvas.height/2); } } }; script.onerror = function() { console.error('Failed to load Chart.js library.'); }; document.head.appendChild(script); } else { // Chart.js is already loaded or will be loaded separately // Ensure chart is updated if data is present on load if (courses.length > 0) { updateChart(); } }

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