Calculate your weighted course grade, find the final exam score you need for a target grade, and convert marks to letter grades.
Add homework, quizzes, exams, and their respective weight %
Grade B+ (3.3 / 4.0 GPA Scale)
Target grade 90% requires extra credit (101.67%) on final exam.
The attendance percentage formula calculates the proportion of classes attended out of total classes conducted. To maintain a required target criteria (such as 75%), bunk guidance...
The overall weighted course grade sums each assessment score multiplied by its weight, then divides by the total weight entered: Weighted Grade = Σ(Score × Weight) ÷ Σ(Weight). This normalizes the result even if the weights entered do not add up to exactly 100%.
To find the score needed on a remaining final exam, the calculator rearranges the weighted grade formula into Required Final Score = [Target Grade − (Current Grade × (1 − Final Weight))] ÷ Final Weight. A common mistake is forgetting that a required score above 100% means the target is mathematically unreachable without extra credit, and a required score at or below 0% means the target is already secured.
With a current grade of 85%, a target of 90%, and a final exam worth 30% of the course: Required Score = [90 − (85 × 0.70)] ÷ 0.30 = (90 − 59.5) ÷ 0.30 = 101.67%. Since this exceeds 100%, the 90% target is not achievable on this final exam without extra credit.
Calculated percentages map to standard letter grades (A+ for 97% and above, down to F below 60%), letting students see both their numeric and letter grade outcome. Use the Attendance Calculator alongside this tool to track class participation requirements, or the GPA Calculator to convert course grades into a cumulative GPA.
Quick answers about how this tool works.
Use the formula: Required Final Score = [Target Grade - (Current Grade × (1 - Final Weight))] / Final Weight. For example, to get 90% overall with 85% current grade and 30% final weight: (90 - (85 × 0.70)) / 0.30 = 101.67%.
Our calculator automatically normalizes total weights by dividing accumulated weighted score by total weight entered so far.
Letter grades follow standard university grading scales: A+ (97-100%), A (93-96%), A- (90-92%), B+ (87-89%), B (83-86%), B- (80-82%), C+ (77-79%), C (73-76%), C- (70-72%), D (60-69%), and F (<60%).
Yes! You can toggle score input mode between Percentage (%) and Points (Earned Points / Total Points) per assignment.
Yes! The Grade Calculator is 100% free with no registration required.
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