Weighted Grade Calculator

Calculate your weighted grade instantly. Enter your assignment scores and their weights (percentages) to find your final grade. Live charts show how each assignment, exam, and project contributes to your overall grade.

Grade Entry

# Assignment (optional) Grade (%) Weight (%) G × W

Grade Presets

Grade Computation Flow

Live
Grades Products Final Grade
Your Grade
0.00
Weighted Sum0.00
Total Weight0.00
Assignments0

Assignment Weight Distribution

Live
0.00Final Grade

Grade Comparison

Live

Grade Gauge

Live
0 50 100
0.00
Lowest
Highest
Range
Heaviest

What Is a Weighted Grade ?

Understanding Weighted Grades

A weighted grade is a grade where different assignments contribute different amounts to your final score. For example, if your final exam is worth 40% and homework is worth 10%, the exam has four times more impact on your final grade. The weighted grade calculator multiplies each score by its percentage weight and sums the results.

Weighted Grade vs Simple Grade Average

A simple grade average adds all scores and divides by the count — treating a homework quiz the same as a final exam. A weighted grade multiplies each score by its percentage weight first, so high-stakes assessments (exams, projects) have proportionally more influence on the final grade.

See How Weights Affect Your Grade

Drag Sliders
4
1
90 70 86.00
Simple Avg80.00
Weighted Grade86.00
Difference6.00
Drag the sliders to see how assignment weights change your final weighted grade.

How to Use the Weighted Grade Calculator

1

Enter Your Grades

Enter each assignment grade into the calculator — homework scores, quiz grades, exam scores, project grades. Use percentages (e.g., 85 for 85%).

Grade85
2

Set Assignment Weights

Enter the weight each assignment category carries toward your final grade. Check your syllabus — common weights: Homework 20%, Midterm 30%, Final Exam 40%, Participation 10%.

Weight4
3

See Your Weighted Grade

The weighted grade calculator instantly computes your final grade. Charts show how each assignment contributes, and you can adjust grades to plan what scores you need.

Final Grade85.78

Weighted Grade Formula

The Weighted Grade Formula

w =
Σ (xi · wi)Σ wi
=
x₁w₁ + x₂w₂ + … + xₙwₙw₁ + w₂ + … + wₙ
wYour final weighted grade
xiEach assignment grade (score %)
wiWeight for each assignment (%)
ΣSum of all weighted scores

The weighted grade formula multiplies each assignment grade by its weight (percentage of final grade), sums all weighted scores, then divides by the total weight. If weights add to 100%, the result is your final grade percentage.

Try the Grade Formula Live

Live Grade Formula — Edit Scores & Weights

Interactive
Weighted Scores:(85×4) + (92×3) + (78×2) = 340 + 276 + 156 = 772
Total Weight:4 + 3 + 2 = 9
Final Grade:772 ÷ 9 = 85.78
7885.7892

How to Calculate Your Weighted Grade Manually

Step-by-Step Grade Calculation

Grades

📐Homework = 85
🔬Science = 92
📖Midterm = 78

Weights (%)

⚖️Weight % = 4
⚖️Weight % = 3
⚖️Weight % = 2

Step 1: List all assignments and their weights

From your syllabus: Homework = 85% (worth 20%), Midterm = 92% (worth 30%), Final Exam = 78% (worth 50%). Each assignment has a grade and a weight percentage.

85×4=340
92×3=276
78×2=156

Step 2: Multiply each grade by its weight

Homework: 85 × 20 = 1700, Midterm: 92 × 30 = 2760, Final: 78 × 50 = 3900. Higher-weighted assignments produce larger products.

340+276+156
Σ Weighted Scores= 772

Step 3: Add all the weighted scores

1700 + 2760 + 3900 = 8360. This is the total of all grade × weight products.

4+3+2
Σ Weights= 9

Step 4: Add all the weights

20 + 30 + 50 = 100. When weights are percentages that add to 100, this step is straightforward.

7729
=
85.78Final Grade

Step 5: Divide to get your weighted grade

8360 ÷ 100 = 83.60%. Your weighted grade is 83.60%. Notice the final exam (78%) pulls the grade down because it carries 50% of the total weight.

Common Grade Calculation Mistakes

Averaging grades without weights

Simply averaging all your grades treats homework the same as a final exam. If the final is worth 50% and homework 10%, the simple average is wrong.

Using assignment count instead of weight

Having 10 homework grades and 1 exam doesn't mean homework is more important. The syllabus weight (%) is what matters, not the number of assignments.

Weights not adding to 100%

If your assignment weights don't add to 100%, the calculation still works — but double-check your syllabus. Missing a category means your grade is incomplete.

Correct weighted grade approach

Multiply each assignment score by its syllabus weight percentage. Sum all products. Divide by the total weight. This gives your true weighted grade.

Weighted Grade Examples

🎓

Course Grade Example

Calculate your weighted course grade. Edit the scores and weights below to see how different assignments affect your final grade.

AssignmentScoreWeight %Weighted
Homework360
Midterm225
Final Exam95
Weighted Grade =85.00
85.00final grade

The final exam pulls the weighted grade down to 85.00 because it carries the most weight. Even though the homework score is high, its low weight (12.5%) limits its impact.

💹

Multi-Category Grade Example

A typical class with homework, quizzes, and exams. Edit values to plan what grades you need on remaining assignments.

CategoryScoreWeight %Weighted
Quizzes600000
Assignments150000
Final Project160000
Weighted Grade =9.10%
9.10%final grade

Quizzes score 12% × 50,000 weight while assignments score 5% × 30,000 weight. The weighted grade reflects the true impact of each category.

Where Weighted Grades Are Used

🎓

College Courses

Professors weight assignments differently — exams might be 60%, homework 20%, participation 20%. The weighted grade determines your final score.

Exam (60% weight):90
Homework (40% weight):75
Final Grade:85.0
💹

High School Classes

High schools use weighted grades for honors and AP classes, where more difficult courses carry higher weight in GPA calculations.

Quiz avg (20%):12%
Project (80%):5%
Weighted:9.2%
📦

Online Learning

Online platforms weight different activities — video quizzes, assignments, peer reviews, and final assessments — to compute your course grade.

Midterm (40%):$5
Final (60%):$8
Course Grade:$6.00
📊

Certification Exams

Professional certifications weight different exam sections differently. Your weighted score across all sections determines pass/fail.

Section A (70%):4.0
Section B (30%):3.0
Cert Score:3.71

Important Grade Notes

⚖️

Weights must be positive percentages. Assignment weights should be positive percentages. A weight of 0% means that assignment doesn't count toward your grade at all.

40% + 35% + 25% = 100% ✓
🔢

Equal weights = simple grade average. If every assignment is weighted equally (same percentage), your weighted grade equals the simple average of all your scores.

W1=4, W2=1 → Weighted: 86.00 ≠ Simple: 80.00
📏

Your weighted grade is always between your lowest and highest scores. Your final weighted grade will always be between your lowest and highest individual assignment scores — it can never exceed them.

Min: 70
Max: 90
Result: 85.0 — always within range
🎯

Heavy-weight assignments dominate your grade. Assignments with larger weights (like final exams at 40-50%) have the most influence. Acing a 5% quiz barely moves your grade, but acing a 50% final does.

Heavy weight pulls result to: 88.0

Explore Our Calculator Tools

Fifteen purpose-built weighted average calculators — each tailored to a specific domain with unique inputs, outputs, and interactive visualizations.

Grade Calculator

Calculate your final grade using weighted assignments, exams, and projects.

AssignmentsExamsProjects

GPA Calculator

Compute your grade point average across multiple courses.

CoursesCreditsSemesters

Weighted Moving Average Calculator

Apply a weighted moving average to time-series data.

Time-seriesForecastingTrends

Finance Calculator

Portfolio returns, WACC, and investment-weighted metrics with real-time breakdowns.

PortfolioWACCReturns

Cost Calculator

Inventory valuation, unit costs, and supplier comparison with quantity weighting.

InventoryUnit CostAVCO

Payroll Calculator

Blended pay rates, overtime costs, and department salary analysis by headcount.

Pay RatesOvertimeHR

Time Calculator

Weighted durations, delivery estimates, and PERT scheduling by task frequency.

SchedulingSLAPERT

Statistics Calculator

Weighted mean, variance, standard deviation, and coefficient of variation analysis.

MeanVarianceStd Dev

Mean Calculator

Compute the weighted arithmetic mean from data values with different frequencies or importance weights.

Data SetsFrequenciesStatistics

Score Calculator

Compute composite scores from weighted categories for rubrics, tests, and evaluations with letter grades.

RubricsTestsEvaluations

Price Calculator

Calculate VWAP, average purchase price, and procurement costs weighted by quantity or volume.

VWAPProcurementCost Basis

Return Calculator

Compute true portfolio returns by weighting each asset's performance by its dollar allocation.

PortfolioInvestmentsPerformance

Rating Calculator

Combine ratings from multiple review sources weighted by review count or credibility.

ReviewsProductsSurveys

Interest Calculator

Compute blended interest rates across loans, savings, and credit lines weighted by balance.

LoansAPR/APYBlended Rate

Profit Calculator

Analyze blended profit margins across products, services, and segments weighted by revenue.

MarginsRevenueProfitability

Weighted Grade FAQ

Multiply each assignment score by its weight percentage (from your syllabus). Add all the weighted scores together. Divide by the total weight (usually 100% if all categories are included). The result is your weighted grade.

Weighted grades mean different assignments count differently toward your final grade. A final exam worth 40% has four times the impact of participation worth 10%. This reflects the relative importance each assessment has in determining your course grade.

Each category (homework, quizzes, exams, projects) is assigned a weight percentage by your instructor. Categories with higher weights have more influence on your final grade. Getting 100% on a 5% quiz matters less than getting 80% on a 40% final exam.

Yes! Enter your current grades and weights for completed assignments. Then adjust the final exam score until the weighted grade reaches your target. This shows you the minimum score needed on the final.

Your simple average treats every score equally, but your weighted grade accounts for the fact that some assignments are worth more. If you scored high on low-weight assignments and lower on high-weight ones, your weighted grade will be lower than the simple average.