How do I calculate my overall grade in a class?

Add up all the points you earned across all assignments and divide by the total possible points, then multiply by 100. For example, if you earned 425 points out of 500 total, your grade is (425/500) x 100 = 85%. If your class uses weighted categories (e.g., homework 30%, exams 70%), enable the weighted grades option and enter the weight for each assignment or category.

What grade do I need on my final exam to pass?

Use the Final Grade Calculator tab. Enter your current grade percentage, your desired final grade (e.g., 70% for a C), and the weight of the final exam (found in your syllabus). The calculator will tell you the exact minimum score you need. For example, if you have an 82% and want a 90% with a final worth 25%, you would need to score 114% — which is not possible, meaning a 90% is out of reach.

What is the difference between weighted and unweighted grades?

Unweighted grades treat all assignments equally based on points earned vs. total points. Weighted grades assign different importance (weights) to categories like homework (20%), quizzes (30%), and exams (50%). In a weighted system, a 100% on an exam worth 50% of your grade matters more than a 100% on homework worth 20%.

How does the letter grade scale work?

This calculator uses the standard US letter grade scale: A+ (97-100%), A (93-96.9%), A- (90-92.9%), B+ (87-89.9%), B (83-86.9%), B- (80-82.9%), C+ (77-79.9%), C (73-76.9%), C- (70-72.9%), D+ (67-69.9%), D (63-66.9%), D- (60-62.9%), F (below 60%). Some schools may use slightly different scales.

Can I calculate my GPA with this tool?

This tool calculates individual class grades as percentages and letter grades. For GPA calculation, which converts letter grades across multiple classes into a 4.0 scale, use our GPA Calculator tool. You can use this grade calculator to determine your letter grade in each class, then input those into the GPA calculator.

How do extra credit assignments affect my grade?

Enter extra credit as a regular assignment. If the extra credit is worth up to 10 bonus points, enter 10 for the score and 0 for the total points in an unweighted system. Alternatively, if the extra credit is added to an existing assignment, simply add the bonus points to that assignment's score (e.g., 95 out of 90 total if you got 5 bonus points).

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How to Use Grade Calculator

Select the mode: calculate current grade or find needed final exam score.
For current grade, enter each assignment with score and total points.
Enable weighted grades if your syllabus uses category weights.
Add or remove assignments as needed.
For final grade, enter current grade %, desired grade %, and final exam weight.
View what-if scenarios showing your final grade for different exam scores.

How Grade Calculations Work

In an unweighted (points-based) system, your grade is simply the total points earned divided by total possible points. If you scored 85/100 and 42/50, your grade is (85+42)/(100+50) = 127/150 = 84.7%.

In a weighted system, each category has a percentage weight. Your grade is the weighted average: (category1% x weight1 + category2% x weight2 + ...) / (weight1 + weight2 + ...). For example, if Homework (weight 30%) averages 95% and Exams (weight 70%) average 82%, your overall grade is (95 x 30 + 82 x 70) / 100 = 86.1%.

The Final Grade Calculator uses the formula: Needed Score = (Desired - Current x (1 - FinalWeight)) / FinalWeight. This tells you exactly what you need to score on the final exam to achieve your target grade, accounting for how much the final is worth in your overall grade.

Grade Calculator

How to Use Grade Calculator

How Grade Calculations Work

Frequently Asked Questions

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