Understand the impact of course rigor on your academic standing.
Weighted GPA Calculator
Enter the total number of credits you've attempted for courses that contribute to your GPA.
This is the sum of (grade points per credit * credits) for each course.
Credits from courses that receive a grade point boost.
+0.5
+1.0
+1.5
The extra points added to the grade for challenging courses (e.g., 1.0 is common).
Your Weighted GPA Results
–.–
Formula: Weighted GPA = Total Weighted Grade Points Earned / Total Weighted Credits Attempted
*Total Weighted Grade Points Earned = (Sum of [Grade Points * Credits] for regular courses) + (Sum of [Grade Points * Credits * (1 + Weight)] for honors courses)*
*Total Weighted Credits Attempted = (Sum of Credits for regular courses) + (Sum of Credits for honors courses)*
Metric
Value
Description
Total Weighted Credits
–.–
Total credits factored into the GPA calculation, including honors weighting.
Total Weighted Grade Points
–.–
The sum of grade points earned, adjusted for honors course weighting.
Unweighted GPA Equivalent
–.–
An estimation of what your GPA would be without course weighting.
Weighted GPA vs. Unweighted GPA Contribution
What is Weighted GPA?
A **weighted GPA** is a calculation of a student's academic achievement that assigns a higher value to courses considered more rigorous. Unlike an unweighted GPA, which simply averages grades on a standard 4.0 scale (or similar), a weighted GPA acknowledges the increased difficulty and academic commitment required for advanced courses like Advanced Placement (AP), International Baccalaureate (IB), or honors classes. Colleges and universities often use weighted GPAs to better compare applicants from different high schools, as they provide a clearer picture of a student's performance in challenging academic environments. Understanding how your GPA is weighted is crucial for college admissions, scholarship applications, and academic planning.
Who Should Use It: High school students, parents, guidance counselors, and educators can use this information and the calculator. It's particularly useful for students aiming for selective colleges, as admissions committees frequently evaluate weighted GPAs.
Common Misconceptions:
Misconception 1: All schools weight similarly. Weighting systems vary significantly by school district and even by individual high school. Some schools might add 0.5 points, while others add a full point to the grade for weighted courses.
Misconception 2: Weighted GPA automatically means a higher GPA. While weighting *can* inflate a GPA, it only does so if the student earns good grades in those weighted courses. A poor grade in an AP class might result in a lower weighted GPA than a good grade in a regular course.
Misconception 3: Weighted GPA is the only factor. Colleges look at many factors beyond GPA, including standardized test scores, essays, extracurricular activities, and letters of recommendation.
Weighted GPA Formula and Mathematical Explanation
The calculation of a **weighted GPA** involves assigning additional points to grades earned in advanced or honors courses. The core idea is to differentiate between achievement in standard courses and achievement in more demanding curricula.
The Core Calculation
The fundamental formula for any GPA (weighted or unweighted) is:
GPA = Total Grade Points Earned / Total Credits Attempted
The "weighted" aspect comes into play when calculating both the "Total Grade Points Earned" and, sometimes, the "Total Credits Attempted" (though more commonly, credits are just summed). Here's a more detailed breakdown:
Step 1: Assign Numerical Values to Grades
Each letter grade is converted into a numerical value. A standard unweighted scale might be:
A = 4.0
B = 3.0
C = 2.0
D = 1.0
F = 0.0
Step 2: Apply Weighting to Honors/AP/IB Courses
This is where the system differentiates. If a school uses a +1.0 weighting system, the numerical values for honors courses are increased:
Honors/AP/IB A = 5.0 (4.0 + 1.0)
Honors/AP/IB B = 4.0 (3.0 + 1.0)
Honors/AP/IB C = 3.0 (2.0 + 1.0)
Honors/AP/IB D = 2.0 (1.0 + 1.0)
Honors/AP/IB F = 1.0 (0.0 + 1.0)
(Note: Some schools cap the maximum grade points, meaning an 'A' in an honors course might still be 4.0, but the *calculation* might use a higher base or a different multiplier). Our calculator uses the common method of adding points directly.
Step 3: Calculate Grade Points for Each Course
Multiply the numerical grade value (after applying weighting) by the number of credits for that course.
Grade Points = Numerical Grade Value × Credits
Step 4: Sum Grade Points and Credits
Add up the grade points for all courses to get the "Total Grade Points Earned". Add up the credits for all courses to get the "Total Credits Attempted". For weighted GPA, this sum includes the *weighted* grade points.
Step 5: Calculate the Weighted GPA
Divide the total weighted grade points by the total credits attempted.
Variables Used in Calculation:
Variable
Meaning
Unit
Typical Range
Total Credits Attempted (Weighted)
The sum of all credits for courses taken, including those designated as honors/AP/IB.
Credits
10 – 60+ (over several years)
Total Grade Points Earned (Weighted)
The sum of grade points earned for each course, calculated as (Numerical Grade Value × Credits), with honors/AP/IB courses receiving a higher numerical value based on the school's weighting system.
Grade Points
30 – 240+
Credits in Honors/AP/IB Courses
The number of credits specifically from advanced or challenging courses.
Credits
0 – Total Credits Attempted
Weight for Honors/AP/IB Courses
The additional value assigned to grades in honors/AP/IB courses (e.g., +0.5, +1.0).
Points
0.0 – 1.5+
Practical Examples (Real-World Use Cases)
Example 1: Student with Honors Courses
Sarah is a junior who has taken a mix of regular and honors classes.
Total Credits Attempted: 30 (16 regular, 14 honors)
Regular Courses: Earned an average grade point of 3.5 (e.g., mostly Bs and As). Total grade points for regular courses = 16 credits * 3.5 = 56.
Honors Courses: Earned an average grade point of 3.2 (e.g., some As, some Bs). Assume a +1.0 weighting.
Calculating Weighted Grade Points for Honors: The unweighted value is 3.2. With +1.0 weighting, the effective grade points per credit become 4.2. Total weighted grade points for honors = 14 credits * 4.2 = 58.8.
Interpretation: Sarah's weighted GPA of 3.83 is higher than her unweighted GPA would be (which would be closer to 3.35 if calculated purely from the average grade points). This reflects her success in more challenging courses, which colleges will appreciate.
Example 2: Student with Lower Grades in Honors
John is also a junior, attempting the same total credits.
Total Credits Attempted: 30 (16 regular, 14 honors)
Regular Courses: Earned an average grade point of 3.8 (mostly As). Total grade points for regular courses = 16 credits * 3.8 = 60.8.
Honors Courses: Earned an average grade point of 2.5 (e.g., Cs and Bs). Assume a +1.0 weighting.
Calculating Weighted Grade Points for Honors: Unweighted value is 2.5. With +1.0 weighting, effective grade points per credit = 3.5. Total weighted grade points for honors = 14 credits * 3.5 = 49.
Interpretation: Although John took challenging honors courses, his lower grades in them lowered his overall weighted GPA compared to if he had taken regular courses and earned similar grades. His weighted GPA of 3.66 might be lower than his unweighted GPA would be if he had avoided the honors classes, highlighting that strong performance in rigorous courses is key to benefiting from weighting.
How to Use This Weighted GPA Calculator
Our calculator is designed to be simple and provide instant feedback on your academic standing. Follow these steps:
Gather Your Information: You'll need your transcript or grade records. Identify the total number of credits you've attempted across all courses that contribute to your GPA. Also, find the total grade points you've earned, taking into account the numerical value of each grade and its corresponding credits. Note the credits specifically from honors, AP, or IB courses.
Input Total Credits Attempted (Weighted): Enter the grand total of all credits you've taken. This includes both regular and honors/AP/IB courses.
Input Total Grade Points Earned (Weighted): This is the sum of (grade points * credits) for ALL your courses. If your school already applies weighting to your transcript's grade points, use those values. If you're calculating manually based on letter grades and a defined weighting system, ensure you've applied the weights correctly here. (Our calculator's inputs are simplified to help you calculate directly).
Input Credits in Honors/AP/IB Courses: Enter the specific number of credits earned in your advanced courses.
Select Honors Weight: Choose the value your school adds to the grade points for honors/AP/IB courses (e.g., +0.5 or +1.0). If unsure, consult your school's grading policy.
Click "Calculate Weighted GPA": The calculator will process your inputs.
How to Read Results:
Primary Result (Weighted GPA): This is your main calculated weighted GPA. A higher number indicates stronger academic performance, especially in challenging courses.
Intermediate Values: These provide a breakdown of your total weighted credits and weighted grade points, showing the components that make up your final GPA. The "Unweighted GPA Equivalent" gives you a point of comparison.
Chart: Visualize how your weighted GPA compares to what it might be without course rigor adjustments.
Decision-Making Guidance:
Use these results to understand your academic profile. If your weighted GPA is lower than expected, consider focusing on improving grades in your advanced courses or discussing your course load with your counselor. If it's strong, highlight this achievement in college applications to showcase your academic ambition and ability to handle rigorous coursework. Remember to always check how your specific high school calculates weighted GPA, as policies can differ. For more insights, explore our guide on understanding college admissions.
Key Factors That Affect Weighted GPA Results
Several elements influence the final calculation of a student's **weighted GPA**. Understanding these factors can help students strategize their academic planning effectively.
Course Rigor (AP, IB, Honors): This is the primary driver of weighting. The more advanced courses a student takes, the greater the potential for their GPA to be elevated, assuming they achieve good grades. The number of credits earned in these courses directly impacts the total weighted grade points.
Specific Weighting Policy: As mentioned, different schools assign different point values to honors courses. A +1.0 system has a more significant impact than a +0.5 system. Some schools might even have different weights for different types of advanced courses (e.g., IB weighted higher than honors). This policy is fundamental to how **colleges calculate weighted gpa**.
Numerical Grade Achieved: Even with weighting, the actual grade earned is paramount. A high grade (A or B) in an honors course contributes significantly more to a weighted GPA than a low grade (C or D). A student performing poorly in an advanced class might see their weighted GPA suffer more than if they had taken a standard course.
Total Credits Attempted: The overall number of credits taken throughout high school affects the GPA calculation. More credits mean each individual course grade has a smaller impact on the overall average. A student taking many advanced courses over several years will have a more robust and representative weighted GPA. Explore options for earning college credits in high school.
Grade Calculation Method: Ensure you understand if your school uses a system where the weight is added directly to the numerical grade (e.g., 4.0 + 1.0 = 5.0) or if it uses a percentage-based system that's then converted. Some schools might cap the maximum possible GPA, meaning an 'A' in an AP class might still translate to a 4.0, but the *calculation process* differs.
Consistency of Performance: While individual course grades matter, consistent performance across multiple advanced courses demonstrates sustained effort and capability. Colleges look for a trend of success in challenging curricula, not just isolated high marks. Reviewing your academic transcript analysis can reveal these trends.
School's GPA Scale: While this calculator focuses on the *weighted* aspect, the underlying numerical scale (e.g., A=4, B=3) used by the school is the baseline. Always confirm your school's specific grading scale and how it applies to weighted calculations.
Incomplete or Failed Courses: Courses with failing grades or incompletes significantly drag down a GPA, weighted or not. These often result in 0 grade points and contribute to the total credits attempted, thus lowering the overall average.
Frequently Asked Questions (FAQ)
How do colleges calculate weighted GPA if my school uses a different system?
Colleges typically rely on the GPA reported by your high school. They understand that weighting systems vary. They may recalculate GPA using their own standards or simply accept the weighted GPA provided, interpreting it within the context of your school's known policies. It's always best to ask your counselor how your school's GPA is presented to colleges.
What is the difference between weighted and unweighted GPA?
An unweighted GPA uses a standard scale (e.g., A=4.0) for all courses. A weighted GPA adds extra points to grades earned in challenging courses like AP, IB, or honors classes, reflecting their increased difficulty. Our calculator helps you estimate both.
Can a weighted GPA be higher than 4.0?
Yes, in many schools that use weighting systems. For example, if an 'A' in a regular class is 4.0, an 'A' in an AP class with +1.0 weighting might be calculated as 5.0. However, some colleges may cap GPA calculations at 4.0 or have their own methods for evaluating rigor.
Does a lower grade in an AP class hurt my weighted GPA more?
Potentially, yes. Because the AP course has a higher weight, a lower grade (like a C or D) will result in fewer weighted grade points than if you had earned that same grade in a regular class. This can lower your overall weighted GPA more significantly than it would affect an unweighted GPA.
Should I take honors classes even if I might get a B or C?
This is a strategic decision. Colleges often value demonstrated ability to handle rigorous coursework. A 'B' in an AP class might be equivalent to or better than an 'A' in a regular class on a weighted scale. Discuss your course load with your counselor to balance challenge with performance. Explore strategies for academic success.
What if my school doesn't offer weighted GPA?
If your school only calculates an unweighted GPA, colleges will assess your transcript based on the course rigor listed. They'll look at the specific names of AP, IB, or honors courses you took and their difficulty level to understand your academic challenge, even without formal weighting.
How do colleges view a student with a high unweighted GPA but few advanced courses?
Colleges aim for a balanced view. A high unweighted GPA shows strong academic consistency. However, a lack of advanced courses might suggest a student isn't pushing their academic boundaries or taking advantage of opportunities to demonstrate advanced capabilities. This is why weighting is important.
Can I calculate my weighted GPA for past semesters?
Yes, absolutely. If you have the grade and credit information for previous semesters, you can input the cumulative totals into the calculator to see your weighted GPA up to that point. This is useful for tracking progress towards graduation requirements or college application goals.
function calculateWeightedGPA() {
var totalCreditsInput = document.getElementById("totalCredits");
var totalGradePointsInput = document.getElementById("totalGradePoints");
var honorCoursesInput = document.getElementById("honorCourses");
var honorWeightInput = document.getElementById("honorWeight");
var totalCreditsError = document.getElementById("totalCreditsError");
var totalGradePointsError = document.getElementById("totalGradePointsError");
var honorCoursesError = document.getElementById("honorCoursesError");
var resultsSection = document.getElementById("resultsSection");
var chartContainer = document.getElementById("chartContainer");
// Clear previous errors
totalCreditsError.style.display = 'none';
totalGradePointsError.style.display = 'none';
honorCoursesError.style.display = 'none';
// Get input values and convert to numbers
var totalCredits = parseFloat(totalCreditsInput.value);
var totalGradePoints = parseFloat(totalGradePointsInput.value);
var honorCourses = parseFloat(honorCoursesInput.value);
var honorWeight = parseFloat(honorWeightInput.value);
// Validation
var isValid = true;
if (isNaN(totalCredits) || totalCredits <= 0) {
totalCreditsError.textContent = "Please enter a valid number for total credits attempted (must be greater than 0).";
totalCreditsError.style.display = 'block';
isValid = false;
}
if (isNaN(totalGradePoints) || totalGradePoints < 0) {
totalGradePointsError.textContent = "Please enter a valid number for total grade points earned (cannot be negative).";
totalGradePointsError.style.display = 'block';
isValid = false;
}
if (isNaN(honorCourses) || honorCourses totalCredits) {
honorCoursesError.textContent = "Honors credits cannot exceed total credits attempted.";
honorCoursesError.style.display = 'block';
isValid = false;
}
if (!isValid) {
resultsSection.classList.add('hidden');
chartContainer.classList.add('hidden');
return;
}
// — Core Weighted GPA Calculation —
// Simplified model assuming inputs are directly cumulative weighted values for ease of use.
// A more complex model would involve per-course inputs.
// For this calculator, we directly use the provided total weighted grade points and total credits.
var weightedGPA = totalGradePoints / totalCredits;
// Intermediate Calculations (Estimates for comparison)
// Estimate unweighted GPA: Assume honors courses contribute less
// This is a simplification. Real unweighted GPA depends on individual grades.
// We'll approximate by reducing the grade points contribution of honors courses.
var estimatedRegularCredits = totalCredits – honorCourses;
// A rough estimation: Assume grade points in honors were proportionally higher.
// If weight is 1.0, grade points were effectively 1/(1+1) = 0.5 of the weighted value.
// This is a very rough estimation for illustrative purposes.
var unweightedHonorGradePoints = (totalGradePoints – (honorCourses * honorWeight * (totalGradePoints / totalCredits))) / honorCourses ; // This is getting complex and may not be accurate. Let's simplify.
// A simpler approach for Unweighted GPA Estimation:
// If totalCredits = 30, honorCourses = 10, weight = 1.0
// Assume totalGradePoints = 100. Weighted GPA = 100/30 = 3.33
// If honors had weight 1.0, their grade points were effectively (grade_point + 1.0) * credits
// Unweighted: grade_point * credits
// Let's try a different approach: Calculate the 'average point per credit' contributed by honors and subtract weight.
// Let's assume the input "Total Grade Points Earned (Weighted)" ALREADY includes the weighting factor.
// To estimate UNWEIGHTED GPA, we need to REVERSE the weighting for the honors portion.
// Let's assume the "totalGradePoints" input value represents the sum of (grade_value * credits).
// And "honorCourses" are the credits that got weighted.
// The input "totalGradePoints" *should* ideally be the SUM of (grade * credits) for ALL courses.
// However, the prompt implies "Total Grade Points Earned (Weighted)" is an input.
// Let's reinterpret the calculator inputs to be more aligned with a manual calculation:
// Input 1: Total Credits Attempted (all courses)
// Input 2: Total Grade Points Earned (using a standard 4.0 scale, BEFORE weighting)
// Input 3: Credits in Honors/AP/IB Courses
// Input 4: Weight for Honors/AP/IB Courses
// Let's adjust the calculator logic based on this interpretation for clarity.
// We'll need to re-label the inputs in the HTML for this.
// RECALCULATING based on the initial interpretation for now, as per the prompt's input names.
// If totalGradePoints is already weighted, and totalCredits is total credits:
// Weighted GPA = totalGradePoints / totalCredits
// For unweighted GPA estimation:
// We need to estimate what grade points would have been WITHOUT weight.
// This is tricky because we don't have per-course data.
// A rough approximation:
// Assume the average grade point per credit for honors courses was (totalGradePoints / totalCredits) + honorWeight.
// This is NOT accurate. Let's use a proxy:
// If Weighted GPA = WGPA, Unweighted GPA = UGPA, Honor Weight = HW, Honor Credits = HC, Regular Credits = RC, Total Credits = TC
// WGPA = (UGPA_Regular * RC + (UGPA_Honor + HW) * HC) / TC
// UGPA = (UGPA_Regular * RC + UGPA_Honor * HC) / TC
// Let's use a simpler heuristic: Calculate the "average grade points per credit" for the honors portion and subtract the weight.
// This is highly speculative without individual course data.
// For demonstration, let's just calculate the impact of honor courses on the AVERAGE grade points.
var estimatedUnweightedGPA;
if (honorCourses > 0 && totalCredits > honorCourses) {
// Assume the "totalGradePoints" provided are the FINAL weighted points.
// We need to infer the "base" grade points.
// Let's assume the *average* grade point value for honors courses was roughly (totalGradePoints / totalCredits) + honorWeight.
// To get the unweighted value, we subtract the weight.
// Average points per credit in honors courses (estimated) = (totalGradePoints / totalCredits) + honorWeight
// Estimated unweighted points per credit in honors courses = (totalGradePoints / totalCredits)
// This is still too simplistic.
// ALTERNATIVE INTERPRETATION:
// The user inputs:
// 1. Total Credits (any course)
// 2. Total Grade Points EARNED (SUM of [grade_value * credits]) – this is the UNWEIGHTED basis.
// 3. Credits in Honors/AP/IB
// 4. Weighting factor (e.g., +1.0)
// In this case:
// Unweighted GPA = Total Grade Points Earned / Total Credits
// Weighted Grade Points = Total Grade Points Earned + (Credits in Honors/AP/IB * Weighting Factor * Credits per course? No, just * Weighting Factor)
// The formula is typically: Sum of (grade_value * credits) for non-weighted + Sum of ((grade_value + weight) * credits) for weighted.
// Or: Sum of (grade_value * credits) for non-weighted + Sum of (grade_value * credits) * (1 + weight factor) for weighted.
// Let's assume the calculator inputs align with the HTML labels:
// totalCredits = Total Credits Attempted (Weighted) -> Sum of all credits
// totalGradePoints = Total Grade Points Earned (Weighted) -> Sum of (grade_value * credits) where grade_value is ALREADY weighted.
// This makes the calculation straightforward:
// Weighted GPA = totalGradePoints / totalCredits
// To estimate UNWEIGHTED GPA, we need to REMOVE the weight from totalGradePoints.
// This requires knowing the *proportion* of grade points that came from weighted courses.
// Let's assume the grade points for honors courses were HIGHER than their unweighted value.
// If weight is 1.0, then the actual points added were (base_grade_points + 1.0)*credits vs base_grade_points*credits.
// The difference is 1.0 * credits.
// So, total weighted points = sum(base_points*credits for regular) + sum((base_points+weight)*credits for honors)
// total weighted points = sum(base_points*credits for all) + sum(weight*credits for honors)
// total weighted points = total_unweighted_grade_points + (honorCourses * honorWeight)
// Therefore, total_unweighted_grade_points = totalGradePoints – (honorCourses * honorWeight)
// And Unweighted GPA = total_unweighted_grade_points / totalCredits
var estimatedUnweightedGradePoints = totalGradePoints – (honorCourses * honorWeight);
estimatedUnweightedGPA = estimatedUnweightedGradePoints / totalCredits;
// Ensure unweighted GPA isn't negative due to extreme inputs or calculation artifacts
if (estimatedUnweightedGPA < 0) {
estimatedUnweightedGPA = 0;
}
} else {
// If no honors courses, unweighted is same as weighted
estimatedUnweightedGPA = totalGradePoints / totalCredits;
}
// Clamp results to reasonable ranges if necessary, though calculations should be sound.
weightedGPA = Math.max(0, Math.min(weightedGPA, 5.0)); // Assuming max possible weighted GPA could exceed 4.0
estimatedUnweightedGPA = Math.max(0, Math.min(estimatedUnweightedGPA, 4.0)); // Standard unweighted max is 4.0
// Display results
document.getElementById("weightedGPADisplay").textContent = weightedGPA.toFixed(2);
document.getElementById("finalTotalCreditsDisplay").textContent = totalCredits.toFixed(1);
document.getElementById("finalTotalGradePointsDisplay").textContent = totalGradePoints.toFixed(1);
document.getElementById("unweightedGPADisplay").textContent = estimatedUnweightedGPA.toFixed(2);
resultsSection.classList.remove('hidden');
chartContainer.classList.remove('hidden');
// Update Chart
updateChart(weightedGPA, estimatedUnweightedGPA);
}
function updateChart(weightedGPA, unweightedGPA) {
var ctx = document.getElementById('gpaChart').getContext('2d');
// Destroy previous chart instance if it exists
if (window.gpaChartInstance) {
window.gpaChartInstance.destroy();
}
// Ensure canvas has a valid context before drawing
if (!ctx) {
console.error("Could not get canvas context.");
return;
}
// Set canvas width and height dynamically based on its container size
var chartContainer = document.getElementById('chartContainer');
var chartWidth = chartContainer.offsetWidth;
// Maintain aspect ratio, e.g., 16:9 or 4:3. Let's use ~0.6 for a decent height.
var chartHeight = chartWidth * 0.6;
var canvas = document.getElementById('gpaChart');
canvas.width = chartWidth;
canvas.height = chartHeight;
window.gpaChartInstance = new Chart(ctx, {
type: 'bar', // Use 'bar' for comparison
data: {
labels: ['GPA Values'],
datasets: [{
label: 'Weighted GPA',
data: [weightedGPA],
backgroundColor: 'rgba(0, 74, 153, 0.7)', // Primary blue
borderColor: 'rgba(0, 74, 153, 1)',
borderWidth: 1
}, {
label: 'Estimated Unweighted GPA',
data: [unweightedGPA],
backgroundColor: 'rgba(40, 167, 69, 0.7)', // Success green
borderColor: 'rgba(40, 167, 69, 1)',
borderWidth: 1
}]
},
options: {
responsive: true,
maintainAspectRatio: false, // Important for dynamic resizing
scales: {
y: {
beginAtZero: true,
max: 5.0, // Set a reasonable max, common for weighted GPAs
title: {
display: true,
text: 'GPA Scale'
}
}
},
plugins: {
legend: {
position: 'top',
},
title: {
display: true,
text: 'Comparison of Weighted vs. Unweighted GPA'
}
}
}
});
}
function resetForm() {
document.getElementById("totalCredits").value = "15";
document.getElementById("totalGradePoints").value = "55";
document.getElementById("honorCourses").value = "8";
document.getElementById("honorWeight").value = "1.0"; // Reset to the most common value
// Clear errors
document.getElementById("totalCreditsError").style.display = 'none';
document.getElementById("totalGradePointsError").style.display = 'none';
document.getElementById("honorCoursesError").style.display = 'none';
// Hide results and chart
document.getElementById("resultsSection").classList.add('hidden');
document.getElementById("chartContainer").classList.add('hidden');
}
function copyResults() {
var weightedGPA = document.getElementById("weightedGPADisplay").textContent;
var finalTotalCredits = document.getElementById("finalTotalCreditsDisplay").textContent;
var finalTotalGradePoints = document.getElementById("finalTotalGradePointsDisplay").textContent;
var unweightedGPA = document.getElementById("unweightedGPADisplay").textContent;
var totalCreditsInput = document.getElementById("totalCredits").value;
var totalGradePointsInput = document.getElementById("totalGradePoints").value;
var honorCoursesInput = document.getElementById("honorCourses").value;
var honorWeightInput = document.getElementById("honorWeight").value;
var formula = "Weighted GPA = Total Weighted Grade Points Earned / Total Weighted Credits Attempted";
var explanation = "Assumptions:\n" +
"Total Credits Attempted (Weighted): " + totalCreditsInput + "\n" +
"Total Grade Points Earned (Weighted): " + totalGradePointsInput + "\n" +
"Credits in Honors/AP/IB Courses: " + honorCoursesInput + "\n" +
"Weight for Honors/AP/IB Courses: +" + honorWeightInput + "\n\n" +
"Key Results:\n" +
"Weighted GPA: " + weightedGPA + "\n" +
"Total Weighted Credits: " + finalTotalCredits + "\n" +
"Total Weighted Grade Points: " + finalTotalGradePoints + "\n" +
"Estimated Unweighted GPA: " + unweightedGPA + "\n\n" +
"Formula Used:\n" + formula;
// Use modern Clipboard API if available, fallback to textarea method
if (navigator.clipboard && window.isSecureContext) {
navigator.clipboard.writeText(explanation).then(function() {
// Success feedback
var copyButton = document.querySelector('.copy-button');
var originalText = copyButton.textContent;
copyButton.textContent = 'Copied!';
setTimeout(function() {
copyButton.textContent = originalText;
}, 2000);
}).catch(function(err) {
console.error('Async: Could not copy text: ', err);
// Fallback method if clipboard API fails
copyFallback(explanation);
});
} else {
// Fallback for older browsers or non-secure contexts
copyFallback(explanation);
}
}
function copyFallback(text) {
var textArea = document.createElement("textarea");
textArea.value = text;
// Make the textarea out of screen
textArea.style.position = "fixed";
textArea.style.left = "-9999px";
textArea.style.top = "-9999px";
document.body.appendChild(textArea);
textArea.focus();
textArea.select();
try {
var successful = document.execCommand('copy');
var msg = successful ? 'Copied!' : 'Copy failed';
// Provide user feedback
var copyButton = document.querySelector('.copy-button');
var originalText = copyButton.textContent;
copyButton.textContent = msg;
setTimeout(function() {
copyButton.textContent = originalText;
}, 2000);
} catch (err) {
console.error('Fallback: Oops, unable to copy', err);
var copyButton = document.querySelector('.copy-button');
var originalText = copyButton.textContent;
copyButton.textContent = 'Failed';
setTimeout(function() {
copyButton.textContent = originalText;
}, 2000);
}
document.body.removeChild(textArea);
}
// Load Chart.js dynamically if needed, or assume it's available globally
// For a self-contained HTML file, it's better to include it via CDN or inline.
// For this exercise, we assume Chart.js is available.
// If you need to include Chart.js:
//
// Or embed the JS code for Chart.js if it needs to be truly inline without external scripts.
// For this example, we'll assume it's loaded via CDN or a separate script tag.
// Ensure you have a tag in your or before your script.
// Initial calculation on load if inputs have default values
document.addEventListener('DOMContentLoaded', function() {
// Check if Chart.js is available
if (typeof Chart === 'undefined') {
console.error("Chart.js library is not loaded. Please include it via CDN or embed it.");
// Optionally, hide the chart container or show an error message.
document.getElementById("chartContainer").classList.add('hidden');
} else {
calculateWeightedGPA(); // Run calculation on page load with default values
}
});