How to calculate your grade
- Add a row for each category (homework, quizzes, midterm, project) or for each individual assignment.
- Enter the grade you earned as a percentage and the category’s weight from your syllabus.
- Your weighted average and letter grade appear instantly. Leave rows blank for work that hasn’t been graded yet.
The weighted grade formula
Weighted grade = (grade₁ × weight₁ + grade₂ × weight₂ + …) ÷ (weight₁ + weight₂ + …)
Example: homework 92% (20%), quizzes 85% (15%), midterm 78% (25%) and project 95% (15%). That’s (92×20 + 85×15 + 78×25 + 95×15) ÷ 75 = 6,490 ÷ 75 = 86.5%, a B. Because only 75% of the course has been graded, the final exam (25%) can still move the grade up or down.
If your teacher uses points instead of percentages, enter each category’s points earned divided by points possible, and use the points possible as the weight.
Letter grade scale
| Letter | Percent | 4.0 scale |
|---|---|---|
| A+ / A | 93–100% | 4.0 |
| A− | 90–92% | 3.7 |
| B+ | 87–89% | 3.3 |
| B | 83–86% | 3.0 |
| B− | 80–82% | 2.7 |
| C+ | 77–79% | 2.3 |
| C | 73–76% | 2.0 |
| C− | 70–72% | 1.7 |
| D+ | 67–69% | 1.3 |
| D | 63–66% | 1.0 |
| D− | 60–62% | 0.7 |
| F | Below 60% | 0.0 |
The most common US scale. Schools and teachers may use different cut-offs — check your syllabus.
What do I need on the final?
Once you know your current grade, the final grade calculator tells you exactly what score you need on the final exam to reach your target. For a single test, use the test grade calculator, and for your overall GPA across classes, the GPA calculator.
Frequently asked questions
How do I calculate a weighted grade?
Multiply each grade by its weight, add the results, then divide by the total of the weights.
What if the weights don’t add up to 100%?
That’s fine — the calculator divides by the total weight entered, which shows your grade for the work graded so far.
What letter grade is 85%?
On the common US scale, 85% is a B (83–86%).
Can I use points instead of percentages?
Yes. Enter points earned ÷ points possible × 100 as the grade, and the points possible as the weight.