Average Grade Calculator
Instantly compute weighted or simple grade averages with full breakdowns, GPA conversion, and goal tracking.
| # | Grade | Weight | Contribution | Letter |
|---|
How to Use the Average Grade Calculator
Follow these steps to calculate your grade average accurately in seconds.
Pick a mode
Percentage, Letters, or Points — match your school's system.
Enter grades
Type each assignment, exam, or course grade you received.
Add weights
Enter how much each item counts toward your final grade.
Set a goal
Optional — find out what score you need on your next assignment.
What Is a Weighted Average Grade?
In most courses, not every assignment carries equal importance. A final exam might count for 40% of your grade while a quiz counts for only 10%. A weighted average accounts for these differences so your final grade truly reflects each component's contribution.
The Formula
Weighted Average = Σ(Grade × Weight) ÷ Σ(Weights)
// Example: English 85×40% + Math 92×35% + Science 78×25%
= (85×40 + 92×35 + 78×25) ÷ 100
= (3400 + 3220 + 1950) ÷ 100
= 85.70% → Letter Grade: B
Weighted vs. Unweighted Average
Weighted average — each grade is multiplied by its importance before averaging.
Unweighted average — every grade is treated equally. Simply add all grades and divide by the count. If your class uses a grade curve, this tool handles that too.
US Letter Grade Scale Reference
| Letter | Range | GPA (4.0) | Description |
|---|---|---|---|
| A+ | 97–100% | 4.0 | Outstanding |
| A | 93–96% | 4.0 | Excellent |
| A− | 90–92% | 3.7 | Very Good |
| B+ | 87–89% | 3.3 | Good |
| B | 83–86% | 3.0 | Above Average |
| B− | 80–82% | 2.7 | Slightly Above Average |
| C+ | 77–79% | 2.3 | Average |
| C | 73–76% | 2.0 | Satisfactory |
| C− | 70–72% | 1.7 | Below Average |
| D+ | 67–69% | 1.3 | Passing (barely) |
| D | 60–66% | 1.0 | Passing |
| F | 0–59% | 0.0 | Failing |