Grade Calculator – Calculate Your Weighted Course Grade Instantly

Add your assignments, tests, and exams with their weights to instantly calculate your overall grade for a course.

Overall grade
0.0%
based on 0% of weights entered

Grade Calculator

Enter each graded item, the score you got, and how much it's worth toward your final grade.

Item (optional)
Score %
Weight %
Weights entered so far: 0%
Formula Grade = Σ(score × weight) ÷ Σ(weight) Worked example
Homework — 85% — weight 20
Midterm — 78% — weight 30
Final Exam — 90% — weight 50
Grade = (85×20 + 78×30 + 90×50) ÷ (20+30+50) = (1700+2340+4500) ÷ 100 = 85.4% That's an overall grade of 85.4%, which falls in the B range.

Frequently asked questions

Why do I need weights instead of just averaging my scores?
A plain average treats a 5% homework quiz the same as a 40% final exam, which isn't how your grade is actually determined. Weighting multiplies each score by how much it counts toward the total, so a strong final exam moves your grade far more than a strong quiz does — matching the syllabus breakdown your instructor actually uses.
What happens if my weights don't add up to 100%?
This calculator still works — it divides your weighted total by whatever your weights actually sum to, not by a fixed 100. That's useful if you're calculating your grade partway through the term, before every assignment has been given a weight, or before the final exam has happened yet. The result is your current grade based only on the components you've entered so far.
Can I use this to project what score I need on a final exam?
Yes, indirectly. Enter all your completed components with their real weights, leave the final exam's score blank, and note your current weighted result. Then work backward: if the final is worth 40% and you need an 85% overall, you can test different final-exam scores in that row until the overall grade shown matches your target.
Does this calculator support letter grades, or only percentages?
It works in percentages, since that's how most syllabi list component weights and scores. If your instructor gives you a letter grade for an assignment, convert it to a percentage first (for example, treat a B+ as roughly 87%) before entering it, or use your institution's own letter-to-percentage scale if it publishes one.
How is this different from the GPA calculator?
This grade calculator works inside a single course, combining assignments, tests, and exams by their weight to produce one overall percentage for that course. The GPA calculator works across multiple courses, combining their final letter grades by credit hours to produce a semester GPA. You'd typically use this tool first to arrive at a course grade, then convert that grade to a letter and grade point for the GPA calculator.