Weighted Grade Calculator
Average grades with different weights, as percentages or letter grades.
Change the values and press Calculate to work out your own figures.
Enter each grade and its weight; weights needn't add up to 100.
Show the working
- Σ(grade × weight) ÷ Σ weight
- = 8,250 ÷ 100 = 82.5%
How to use it
Enter each grade and its weight; weights needn't add up to 100.
Grades can be letters (A+ to F, P or NP for pass/no pass) or percentages (0 to 100). Show the working gives the formula with your numbers.
Key facts
grade = Σ(grade × weight) ÷ Σ weight
Letter grades
Letters are averaged as grade points (A = 4) and the result turned back into a letter.
Questions
Do the weights have to add up to 100?
No; the total weight is divided out.
Formulas
grade = Σ(grade × weight) ÷ Σ weight
Sources
Limitations
- Letter-grade points follow the common US 4.0 scale; schools differ, so check your own school's table.
- Percentage bands for letters are the common 97/93/90 … 60 cut-offs.
- Weighted GPAs add 0.5 for honors and 1 for AP, IB and college courses; some schools use other bonuses.
- At most 50 rows.