Education • Grades
Weighted Grade Calculator
Weighted grade calculator for category-based grading.
| Assignment | Weight % | Score % |
|---|
Final grade
———
Total weight
0%
Normalized to 100%
Formula: Final = Σ(score × weight /100), normalized if weights ≠100. Letters: A+97 A93 A-90 B+87 B83 B-80 C+77 C73 C-70 D+67 D63 D-60.
How to use
- 1Add each grading category with its weight and your score (0–100).
- 2Weights are normalized automatically if they don't total 100.
- 3See your weighted grade and letter grade, plus the effect of each category.
Formula
Weighted grade = Σ (category score × weight) ÷ Σ weights × 100Each category score is multiplied by its weight and summed, then divided by the total weight. The result is the weighted average — the number your teacher uses for the final grade when categories carry different importance.
Examples
Homework 88 (30%), Midterm 74 (30%), Final 92 (40%)
(88×0.30 + 74×0.30 + 92×0.40) → (26.4 + 22.2 + 36.8).
85.4% — B
About
The Weighted Grade Calculator computes your average when grading categories carry different importance. Enter each category's weight and your score, and the calculator applies the weighted-average formula, normalizing weights that don't total 100. This reflects how most teachers actually calculate final grades — homework, quizzes, midterms, and finals each contribute according to their syllabus weight. Students use it to understand how a heavy final or a low homework average affects their standing, and to check which category has the largest influence on the grade they need to improve.
Frequently asked questions
What if my weights sum to less than 100?
The calculator normalizes, scaling the weights proportionally, so your weighted average remains accurate for your completed work.
How does weighting change my grade?
Items with higher weights pull the average more. A strong final worth 40% moves your grade more than an equal score on a 10% quiz.