Grade Calculator: what this tool is for
Tracking academic performance across complex semester courses can be stressful when assignments, midterm exams, lab reports, and final projects all carry different percentage weights or point coefficients. Simple arithmetic averages fail when high-stakes exams carry significantly more weight than weekly homework.
Xorvian's Grade Calculator calculates your weighted GPA and course averages with precision. Add as many assignments and exams as needed, assign custom weights (percentages or points), and instantly see your current overall grade and letter grade standing.
The built-in final exam target grade simulator answers the critical student question: 'What grade do I need on the final exam to secure an overall grade of A or pass the course?' Test hypothetical scenarios and plan your study time effectively.
Everything is calculated locally in your browser with complete privacy. Your grades, course names, and test scores are never uploaded or stored on any server — 100% free with no sign-ups required.
No file stored
Nothing is saved on our servers, during or after processing.
Local processing
The computation runs in your browser whenever the technology allows it.
Instant result
No waiting and no export queue: the result appears live.
Free, no account
No sign-up, no daily limit and no intrusive ads.
What this tool gives you
Accurate Weighted Average Computation
Calculates precise weighted grades using standard academic weighting formulas: (Sum of [Grade × Weight]) / Total Weight.
Target Final Exam Simulator
Determine exactly what score you need on your remaining final exam or capstone project to achieve your desired target course grade.
Supports Flexible Grading Scales
Works seamlessly with percentage scales (0–100%), point systems (/20, /50, /100), and custom weight coefficients.
Unlimited Course Items
Add as many homework assignments, quizzes, midterms, presentations, and lab sessions as your syllabus requires.
100% Private & Client-Side
Your grades remain confidential on your device. No academic data is sent to external servers or tracking databases.
Instant Visual Feedback
Real-time updates dynamically recalculate your overall average as you adjust scores, weights, or target expectations.
Real-world examples
Typical syllabus grading weight distributions and weighted average calculations:
How to use Grade Calculator
Add Your Course Assignments
Click 'Add Assignment' to create entries matching your syllabus (e.g., Homework, Midterm, Project).
Enter Scores and Weights
Input the grade received and the corresponding percentage weight (or coefficient) for each item.
Review Current Course Average
Your current weighted average and letter grade standing update dynamically in the summary panel.
Simulate Final Exam Target Grade
Enter your desired final overall course target (e.g., 90%) and the final exam weight to see the exact required exam score.
Tips and mistakes to avoid
Ensure Weights Total 100%
If your course syllabus lists percentage weights, ensure the sum of all components totals 100% for an accurate overall semester grade.
Check Syllabi for Curve Policies
If your professor applies a grading curve, input raw percentages first to establish your baseline before factoring in curve adjustments.
Plan Study Priorities Based on Exam Weight
Use the final exam simulator early in the semester to focus your study time on high-impact exams that sway your GPA the most.
Avoid : Calculating a Simple Non-Weighted Average
Summing grades and dividing by the number of assignments distorts results when a 40% final exam is treated equally to a 5% quiz.
Avoid : Forgetting Dropped Low Scores
If your syllabus drops your lowest quiz score, exclude that grade from the calculator list for an accurate current standing.
Avoid : Mismatched Score Scales
Ensure all scores are entered on consistent scales (e.g., converting an 18/20 quiz to 90% if using percentage scoring).
Frequently asked questions
Answers to the questions people ask about Grade Calculator.
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Updated on August 2026. See all tools