How to Use This Calculator
- Add assignment rows and enter earned points, max points, and weight %.
- Review your current weighted grade and letter grade.
- Use the final exam section to reverse-calculate the score you need for a target grade.
The Formula Explained
Weighted Grade = Σ(Score% × Weight) / Σ(Weights)Tips & What Your Results Mean
The best way to plan is to stop guessing. If your final exam is 30–40% of your grade, your current average is not the finish line—it’s the starting point for a scenario. Use the “needed on final” output to decide what’s realistic and where studying will pay off most.
If your weights don’t sum to 100%, your teacher may not have entered all categories yet. In that case, the calculator still helps you understand directionally what matters: high-weight categories dominate the outcome.
Frequently Asked Questions
How do weighted grades work?
Weighted grades multiply each category’s score by its weight, then divide by total weight. That means a 40% final exam can move your overall grade much more than a 10% quiz.
What if my weights don’t add up to 100%?
Some syllabi include extra credit or incomplete categories mid-semester. This calculator displays your weight total so you can decide whether to normalize to 100% or wait for the final grading breakdown.
How do I calculate what I need on the final exam?
Use the reverse section: enter the final exam weight and your target course grade. The calculator solves for the final exam percentage needed based on your current weighted grade.
Is a 90% always an A?
Grade cutoffs vary by school and instructor. This page uses a common scale, but you should follow your syllabus for official letter-grade boundaries.
How can I raise my grade fastest?
Improve the highest-weight categories first (finals, major exams, big projects). A small improvement in a high-weight category usually beats a big improvement in a low-weight category.