How to use the Grade Calculator
- Add each graded item or category with your score and its weight.
- Press Calculate.
- Letter grades use a common US scale (93+ A, 90 A−, 87 B+ …). Your syllabus may differ.
Formula
Current grade = Σ(score × weight) ÷ Σ weight
Examples
- Homework 92 (20%), quizzes 84 (15%), midterm 78 (25%), project 88 (15%) → 6,370 ÷ 75 = 84.93% (B).
Frequently asked questions
What if my categories use points instead of percentages?
Turn each into a percentage first (points earned ÷ points possible × 100), then enter it with the category weight.