Grade Calculator
0% overall —
| Assignment | Score (%) | Weight | Weighted Points |
|---|
How the Weighted Grade Is Calculated
This calculator uses the standard weighted-average method that most course syllabi describe: each assignment's percentage score is multiplied by its weight, those weighted points are summed, and the total is divided by the sum of the weights — overall % = Σ(score × weight) / Σ(weight). If your weights already add up to 100 (for example, homework 10%, quizzes 15%, midterm 25%, project 20%, final 30%), the division step is just dividing by 100. If they don't add up to 100 — say you haven't entered every category yet — the calculator still normalizes correctly by dividing by whatever the weights actually total, so partial gradebooks still produce an accurate running average.
Letter Grade Scale Used Here
Letter cutoffs are not a universal standard — individual instructors and institutions set their own scales, and some use plus/minus grades while others don't. This calculator applies the common United States convention as its default assumption: A = 90-100, B = 80-89.99, C = 70-79.99, D = 60-69.99, and F below 60, with plus/minus subdivisions at the top and bottom 3 points of each band (for example, 97+ is A+, 90-92.99 is A-). Always check your own syllabus for the exact scale your instructor uses, since this varies meaningfully between schools and even between courses.
Solving for the Grade You Still Need
Enter a target overall percentage and the weight still remaining (for example, if a final exam worth 30% hasn't been entered yet, put 30 in that field) to see the minimum score you'd need on that remaining work to hit your target. If the required score comes back above 100%, your target is mathematically out of reach given what's already recorded; if it's zero or negative, you've already secured that grade. For grade-point-average conversions across a full semester rather than a single course, see the GPA calculator.
Frequently Asked Questions
How is the overall percentage calculated?
Each assignment's score is multiplied by its weight, those weighted points are summed, and the total is divided by the sum of all weights: overall % = Σ(score × weight) / Σ(weight). This works even if your weights don't add up to 100, since dividing by the actual weight total normalizes the result.
How do I find out what I need on my final exam?
Enter your target overall grade and put the final exam's weight (for example 30 for a 30%-weighted final) in the "Weight of Remaining Work" field. The calculator solves for the score on that remaining weight needed to reach your target, and will tell you if the target is mathematically out of reach (requires over 100%) or already secured.