Calculate weighted course grades, letter grade conversions, and final exam target scores needed to achieve your target class grade.
| Assignment / Category | Grade (%) | Weight (%) | Action |
|---|---|---|---|
Click "Calculate Grade" to evaluate course average.
A college student entering final exam week holds an 88% overall course grade, with the upcoming final exam weighted at 25% of the total class grade: to earn an A- (90.0% overall target), calculating target requirements reveals they must score 96.0% on the final exam: Required Final = (90 - 88 × 0.75) / 0.25 = 96.0%. A high school student reviewing a syllabus with weighted categories (Homework 20%, Quizzes 30%, Midterm 25%, Final Project 25%) uses a weighted grade calculator to prioritize study time.
A weighted grade assigns different proportional percentages (weights) to distinct assignment categories based on their relative importance in a course syllabus.
Rather than simply averaging raw score points, weighted grading computes a weighted mean:
Final Grade % = ∑ (Gradeᵢ × Weightᵢ) / ∑ Weightᵢ
This calculator computes current weighted course averages, converts scores into standard letter grades (A+, A, A-, B+, B, B-, C+, C, C-, D, F), and evaluates final exam target requirements. The following guide covers weighted grade formulas, final exam target math, and tips for managing academic workloads.
When assignment scores and weights are submitted, the engine evaluates weighted category products, normalizes by total weight, and converts percentages to letter grades.
1. Weighted Course Grade Formula:
Weighted Grade % = ( (g₁ × w₁) + (g₂ × w₂) + ... + (gₙ × wₙ) ) / ( w₁ + w₂ + ... + wₙ )
Where gᵢ is the score percentage and wᵢ is the category weight percentage.
2. Final Exam Target Score Formula:
Required Final Score % = ( Target % - ( Current Grade % × ( 1 - w_final ) ) ) / w_final
Where w_final is the decimal weight of the final exam (e.g. 0.25 for 25%).
3. Standard Letter Grade Scale:
- A+ / A: 93.0% - 100%
- A-: 90.0% - 92.99%
- B+: 87.0% - 89.99%
- B: 83.0% - 86.99%
- B-: 80.0% - 82.99%
- C+: 77.0% - 79.99%
- C: 73.0% - 76.99%
- C-: 70.0% - 72.99%
- D: 60.0% - 69.99%
- F: Below 60.0%
Final exam strategy and grade planning. Students determine whether securing a target grade requires an easily achievable 75% or an aggressive 98% on the final exam.
Syllabus breakdown and course tracking. Undergraduates track semester progress across weighted homework, lab reports, midterms, and participation categories.
High school GPA maintenance. High school seniors track class percentages to maintain honors or AP course GPA requirements for college applications.
Teacher grading curve administration. Instructors verify category weight balances when designing syllabus grading schemes.
Use Mode 1 to calculate your current class standing based on graded assignments completed so far. Mode 1 automatically normalizes weights if total weight is less than 100%.
Use Mode 2 when preparing for finals to calculate your exact target score requirement.
For cumulative GPA calculations across multiple courses, pair this tool with our Weighted Average Calculator.
The calculation engine operates client-side in JavaScript using IEEE 754 double-precision floats. Calculations evaluate in under 1 millisecond.
| Letter Grade | Percentage Range | GPA Value (4.0 Scale) |
|---|---|---|
| A / A+ | 93.0% - 100% | 4.00 |
| A- | 90.0% - 92.9% | 3.70 |
| B+ | 87.0% - 89.9% | 3.30 |
| B | 83.0% - 86.9% | 3.00 |
| B- | 80.0% - 82.9% | 2.70 |
| C+ | 77.0% - 79.9% | 2.30 |
| C | 73.0% - 76.9% | 2.00 |
| C- | 70.0% - 72.9% | 1.70 |
| D | 60.0% - 69.9% | 1.00 |
| F | Below 60.0% | 0.00 |
If your submitted category weights sum to less than 100% (e.g. 75% completed so far), the calculator automatically normalizes by total weight to give an accurate current overall percentage.
If the calculated final exam requirement exceeds 100%, it means it is mathematically impossible to reach your target grade without extra credit opportunities.
Yes. Convert point-based categories into percentages (e.g. 45/50 points = 90%) and enter the category weight.
Weighted Average Calculator — Computes weighted averages for GPA, portfolios, and surveys.
Percentage Calculator — Solves percentage increases, decreases, and ratios.
Mean, Median & Mode Calculator — Computes unweighted central tendency statistics.