Weighted grade average calculator
Type your grades and, if needed, their weights in the same order. Add a goal to see what grade to aim for.
Result
11Average
- Grade needed on the next test
- 15
- Sum of weights
- 6
- Number of grades
- 3
Inputs
- Your grades
- 12; 15; 9
- Weights (optional)
- 2; 1; 3
- Grades out of
- 20
- Target average (optional)
- 12
- Weight of the next test
- 2
How it is calculated
Average = (grade₁ × weight₁ + grade₂ × weight₂ + …) ÷ (weight₁ + weight₂ + …).
Result
Average
- Grade needed on the next test
- 15
- Sum of weights
- 6
- Number of grades
- 3
How it is calculated
- Average = (grade₁ × weight₁ + grade₂ × weight₂ + …) ÷ (weight₁ + weight₂ + …).
- Grade needed = (target × (sum of weights + test weight) − sum of grade × weight) ÷ test weight.
Example
Grades 12, 15, 9 with weights 2, 1, 3: (24 + 15 + 27) ÷ 6 = 11. To reach 12 with a test of weight 2, you need 15.
Good to know
- All grades must use the same scale (convert a grade out of 10 to one out of 20 first, for example).
- Your school may round or count differently: only the official report counts.
Frequently asked questions
What is this tool used for?
Type your grades and, if needed, their weights in the same order. Add a goal to see what grade to aim for.
How is the result calculated?
Average = (grade₁ × weight₁ + grade₂ × weight₂ + …) ÷ (weight₁ + weight₂ + …).
What should I check before using the result?
All grades must use the same scale (convert a grade out of 10 to one out of 20 first, for example).