Grade Calculator
Calculate your course grade from assignment scores and category weights — weighted percentage, letter grade and each category's contribution. Free.
About the Grade Calculator
Most courses grade by weighted categories: assignments might count 20%, quizzes 15%, the midterm 25% and the final exam 40%. This grade calculator takes each category's score, maximum points and weight, and computes your overall grade with the weighted-average formula: overall = Σ(category % × weight) ÷ Σ(weights). Add or remove categories to match any syllabus.
Say you scored 90/100 on assignments (weight 20), 75/100 on quizzes (weight 15), 68/80 on the midterm (weight 25) and 82/100 on the final (weight 40). The category percentages are 90, 75, 85 and 82, and the overall grade is (90×20 + 75×15 + 85×25 + 82×40) ÷ 100 = 83.3% — a B on the common 90/80/70/60 letter scale the tool applies. Weights do not need to total exactly 100; the calculator normalises by their sum and tells you when they don't.
University students tracking their standing mid-semester, and anyone converting a marks-based result card into a single percentage, get the per-category contribution table too — it shows which category is pulling the grade down. To find what you need on a remaining exam, pair this with our final grade calculator.
How to Use the Grade Calculator
- 1Add a row per grading category — assignments, quizzes, midterm, final.
- 2Enter your score, the maximum points and the category's weight.
- 3Read your overall percentage and letter grade instantly.
- 4Check the table to see each category's weighted contribution.
Frequently Asked Questions
How do I calculate a weighted course grade with an example?
Convert each category to a percentage, multiply by its weight, add, and divide by total weight. Scores of 90% (weight 20), 75% (weight 15), 85% (weight 25) and 82% (weight 40) give (1800 + 1125 + 2125 + 3280) ÷ 100 = 83.3%.
What if my scores are out of different maximums?
That is exactly why each row has its own max-points field. A midterm scored 68/80 is 85%, and it is that percentage — not the raw 68 — that gets weighted. Mixing 80-point exams, 20-point quizzes and 150-point projects works without any manual conversion.
What happens if the weights don't add up to 100?
The calculator divides by whatever the weights sum to, so the result is still correct — weights of 2, 1.5, 2.5 and 4 behave identically to 20/15/25/40. It flags the total for you, since a syllabus mismatch (like forgetting a 10% participation category) is the most common source of grade surprises.
What letter grade is 83.3 percent?
On the widely used 90/80/70/60 scale, 83.3% is a B (80–89%). Institutions differ — many universities in Pakistan award A at 80%+ or use 4.0-scale GPA bands instead — so check your handbook; the percentage itself is universal.
How do I figure out what I need on the final exam?
Set the final-exam row to a trial score and adjust until the overall hits your target — or use our dedicated final grade calculator, which solves it directly. In the worked example, raising the final from 82 to 95 lifts the course grade from 83.3% to 88.5%: with a 40% weight, each final-exam point moves the course grade by 0.4.