How weighted grades work
Each assignment contributes proportionally to the final grade based on its weight. A midterm worth 40% counts twice as much as a quiz worth 20%.
Academic tools
Weighted Grade Calculator
Enter assignment scores and their percentage weights to calculate your weighted average grade. Customize the letter-grade scale in optional assumptions.
Complete guide
How to use Grade Calculator
For a midterm score of 85% weighted at 40% and a final score of 91% weighted at 60%, the weighted grade is (85 x 40 + 91 x 60) / 100 = 88.60%. With the default thresholds, that is a B.
If only the 40%-weight midterm has been graded, entering that row alone gives an 85% average on completed work, not an 85% final course grade. Add ungraded work only when you have a score or want to model a scenario.
Weights are normalized by their actual total. Follow your syllabus for rounding, dropped assignments, extra credit and letter cutoffs. This tool supports scores and weights from 0 to 100; it does not automatically drop the lowest score.
Need a target exam score? Use the final grade calculator. For credit-weighted course grades, use the GPA calculator.
Adding categories
Click Add Assignment to add more rows. Enter the name, score out of 100, and weight percentage for each item.
Letter grade cutoffs
A = 90+, B = 80-89, C = 70-79, D = 60-69, F = below 60. These are common cutoffs - your institution may differ.
Answers
Grade Calculator FAQs
How do I calculate a weighted grade?
Multiply each score by its weight, add all results, then divide by total weight. This calculator does it automatically.
What if my weights do not add up to 100%?
The calculator still works but divides by actual total weight, so the result is still a valid weighted average.
What grade do I need on the final to get an A?
Enter your current scores with their weights, then adjust the final exam score until the result shows 90%.
What is a weighted GPA?
A weighted GPA gives extra points for harder courses (AP or IB). This calculator is for assignment-level grade calculation.
How many assignments can I add?
As many as you need. Click Add Assignment for each additional row.
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Calculation method and limitations
Formula or method
Weighted grade = sum of score x weight / sum of weights. Weights are normalized to the total entered.
Worked example
Scores of 80 at weight 40 and 90 at weight 60 give (80 x 40 + 90 x 60) / 100 = 86%.
Assumptions and limitations
Only included assessments count. The displayed letter thresholds are illustrative; school grading scales and extra-credit rules differ.
Important: Check the assumptions and inputs before relying on this estimate for an important decision.
Editorial note: Review the input definitions, units and assumptions before relying on results. For corrections, contact FormatNest with your inputs and expected result.