How weighted grades work
Many classes weight categories differently — for example homework 20%, quizzes 20%, midterm 25%, project 15% and final exam 20%. Your overall grade is each score multiplied by its weight, added up, and divided by the total weight:
grade = (score₁ × weight₁ + score₂ × weight₂ + …) ÷ (weight₁ + weight₂ + …)
If the weights you've entered don't add up to 100% yet (say, the final hasn't happened), the calculator divides by the weights you have, giving your current grade so far. To see what you need on the final, use the final grade calculator.
Letter grade scale
The most common US scale is below. Your school or teacher may use different cut-offs, so check your syllabus.
| Letter | Percent | GPA |
|---|---|---|
| A+ | 97–100% | 4.0 |
| A | 93–96.99% | 4.0 |
| A− | 90–92.99% | 3.7 |
| B+ | 87–89.99% | 3.3 |
| B | 83–86.99% | 3.0 |
| B− | 80–82.99% | 2.7 |
| C+ | 77–79.99% | 2.3 |
| C | 73–76.99% | 2.0 |
| C− | 70–72.99% | 1.7 |
| D+ | 67–69.99% | 1.3 |
| D | 63–66.99% | 1.0 |
| D− | 60–62.99% | 0.7 |
| F | Below 60% | 0.0 |