The Semester Exam Calculator combines up to four exam scores using their percentage weights to estimate the exam component average. It is designed for courses with multiple tests that contribute different amounts to the semester grade.
Use it to see how a heavily weighted final exam changes the overall exam result or to compare possible score scenarios. The entered weights should total 100% for a complete exam component; otherwise, the calculator normalizes the entered weights and clearly reports their total.
1. Enter each exam score
Use percentages on the same 0–100 scale.
2. Enter matching weights
Use the relative contribution of each exam.
3. Set unused exams to zero weight
A zero-weight row is ignored.
4. Check total weight
For a full exam component, weights normally total 100%.
5. Review the weighted average
Higher-weight exams influence the result more strongly.
Weighted exam average = Sum(Exam score × Exam weight) ÷ Sum(Exam weights)
Weights may be entered as percentages because the common percentage factor cancels during division. The calculator normalizes weights if they do not total 100%.
The result is the weighted average percentage across the exams included.
Results are planning estimates based on the values entered and may differ from school-specific grading or attendance policies.
Given: Scores of 78, 84, 91, and 88 with weights of 20%, 25%, 25%, and 30%.
Calculation: Weighted sum = 78×20 + 84×25 + 91×25 + 88×30 = 8,575. Total weight = 100. Average = 8,575 ÷ 100 = 85.75%.
Result: The weighted exam average is 85.8%.
Not for the normalized average, but a 100% total is easier to compare with a syllabus.
Set its weight to zero after applying the course’s drop policy.
Scores are limited to 100 in this version, so add bonus treatment according to the official grading rules separately.
A weighted average gives more influence to exams with larger weights.
Only if exams are the entire grade. Otherwise combine the exam component with assignments and other categories in a broader grade calculation.