Grade Calculator
Calculate your current weighted course grade from assignments and their weights, and the score you need on the final exam to reach your target grade.
Results
- Current grade = weighted average of the work entered. Needed final = (target − current × (1 − final weight)) ÷ final weight. Letters: A ≥ 90, B ≥ 80, C ≥ 70, D ≥ 60.
What is Grade Calculator?
Computes your current course grade as a weighted average of the graded work you enter (homework, quizzes, midterm…), shows the letter grade, and works out the score you need on the final exam to finish with the grade you want.
How to use Grade Calculator
- For each category enter its Weight % and your Score %; add rows as needed.
- Enter the Final exam weight and your Target overall grade.
- Read your current grade and the score needed on the final.
Example
Homework 30% at 90, Midterm 30% at 80, final weight 40%, target 90
Current grade 85%, letter B; needed on final 97.5%
When to use Grade Calculator
Use it before finals to know what to aim for. If your course uses points instead of percentages, convert each category to a percentage first, and check your syllabus for the exact letter cut-offs.
How Grade Calculator works
Current grade = Σ(weight × score) ÷ Σ weight. With a final exam weight w (as a fraction), the score needed = (target − current × (1 − w)) ÷ w. Letters use the common scale A ≥ 90, B ≥ 80, C ≥ 70, D ≥ 60. Warnings appear if the needed score is above 100%, if the target is already secured, or if the weights plus the final do not add to 100%.
Common Use Cases
- Finding the final exam score needed for an A
- Checking your current standing mid-term
- Seeing how much a bad quiz affects the grade
- Planning study time across courses
FAQs
Why is the current grade not the simple average?
Each score is weighted by its share of the course, so a 30% midterm counts more than a 10% quiz.
What if I need more than 100%?
The target cannot be reached unless there is extra credit; the tool warns you.
Do the weights have to add up to 100?
The current grade uses whatever you entered; the final-exam calculation assumes entered weights plus the final make up the course, and warns otherwise.