Grade Calculator
Calculate your weighted average grade across multiple assignments, convert to letter grade and GPA on a 4.0 scale.
Related tools
What Is a Grade Calculator?
Grades rarely carry equal weight in a course. A final exam worth 50% of your mark matters far more than a homework assignment worth 5%. This grade calculator handles weighted averages so you can see exactly where you stand at any point during a term. Enter each component's grade and weight to get an accurate overall score.
The calculator converts your weighted percentage into both a letter grade and a GPA on the 4.0 scale used by universities in the United States, Canada, and many international institutions. Understanding your GPA is essential for scholarship applications, graduate school admissions, and academic standing requirements. Even if your university uses a different grading scale, the 4.0 equivalent gives you a standardised reference point.
Use this tool proactively rather than waiting for end-of-term surprises. Enter your grades as you receive them to track your running average. You can also enter hypothetical grades for upcoming assignments to see what score you need on the final exam to reach your target grade. This kind of scenario planning helps you allocate study time where it will have the greatest impact.
How Do You Use This Grade Calculator?
Enter each assignment name, the grade received (as a percentage), and its weight. Click Calculate to see your weighted average, letter grade, and equivalent GPA on a 4.0 scale.
- Enter the name of your first assignment or exam.
- Input the grade you received as a percentage (0-100).
- Enter the weight of that assignment as a percentage of the total course grade.
- Repeat for each additional assignment, exam, or coursework component.
- Click Calculate to see your weighted average, letter grade, and GPA.
- Adjust future assignment grades to see what score you need to reach your target.
How Does the Grade Calculator Formula Work?
The formula used: Weighted Average = Σ(Grade × Weight) / Σ(Weights); GPA mapped from percentage using standard 4.0 scale
The weighted average formula gives more influence to assignments with higher weights, reflecting their greater importance in your final grade.
Weighted Average = (Grade₁ × Weight₁ + Grade₂ × Weight₂ + ... + Gradeₙ × Weightₙ) / (Weight₁ + Weight₂ + ... + Weightₙ)
Each grade is multiplied by its weight, the products are summed, and the total is divided by the sum of all weights. For GPA conversion, the percentage is mapped to the 4.0 scale: 93-100% = 4.0 (A), 90-92% = 3.7 (A−), 87-89% = 3.3 (B+), 83-86% = 3.0 (B), 80-82% = 2.7 (B−), and so on down to below 60% = 0.0 (F).
What Are Some Example Calculations?
Midterm exam (40% weight, scored 78%) and final exam (60% weight, scored 85%): (78 × 0.4) + (85 × 0.6) = 31.2 + 51.0 = 82.2%. Letter grade: B−. GPA: 2.7.
A university student with three assessed components: coursework (30%), midterm (30%), and final (40%)
Coursework: 72% × 0.30 = 21.6. Midterm: 68% × 0.30 = 20.4. Final: 81% × 0.40 = 32.4. Total = 74.4%
Weighted average: 74.4%. Letter grade: C. GPA equivalent: 2.0.
A high school student calculating their grade with homework (20%), quizzes (30%), and exams (50%)
Homework: 95% × 0.20 = 19.0. Quizzes: 88% × 0.30 = 26.4. Exams: 79% × 0.50 = 39.5. Total = 84.9%
Weighted average: 84.9%. Letter grade: B. GPA equivalent: 3.0.
Planning ahead: a student has 85% on coursework (50% weight) and needs to know what final exam score (50% weight) achieves an A− (90%)
90 = (85 × 0.50 + X × 0.50). 90 = 42.5 + 0.5X. X = (90 − 42.5) / 0.5 = 95%
The student needs 95% on the final exam to achieve an overall A− grade.
When Should You Use a Grade Calculator?
Use the grade calculator throughout the academic term as you receive graded work. Early in the term, it shows whether you are on track. Mid-term, it helps you prioritise which subjects need more study time. Before finals, it tells you exactly what score you need on remaining assessments to achieve your target grade.
The calculator is also valuable for academic advisors and parents helping students understand their standing. If a student needs a minimum 3.0 GPA to maintain a scholarship, entering current grades shows whether they are above or below that threshold and by how much. This makes conversations about academic performance concrete rather than abstract.
What Do These Terms Mean?
What Are the Best Tips to Know?
- Enter grades as you receive them to maintain an up-to-date running average throughout the term.
- Use the calculator to test 'what if' scenarios — what grade do you need on the final to get a B+?
- Make sure all weights add up to 100% for an accurate overall grade calculation.
- Check your course syllabus carefully for the exact weight of each assessment component.
- If your institution uses a non-standard grading scale, adjust the GPA mapping accordingly.
What Mistakes Should You Avoid?
- Entering grades as decimals (0.85) instead of percentages (85%) or vice versa, depending on the calculator's expected format.
- Forgetting to include all assessment components, leading to weights that do not sum to 100%.
- Assuming all assignments carry equal weight when the syllabus specifies different weightings.
- Confusing the 4.0 GPA scale with percentage scores — a 3.0 GPA corresponds to roughly 83-86%, not 75%.
Frequently Asked Questions
How is GPA calculated on a 4.0 scale?
Each letter grade corresponds to a point value: A = 4.0, A− = 3.7, B+ = 3.3, B = 3.0, B− = 2.7, C+ = 2.3, C = 2.0, C− = 1.7, D+ = 1.3, D = 1.0, F = 0.0. Your GPA is the weighted average of these points across all courses, weighted by credit hours.
What GPA do I need for graduate school?
Most competitive graduate programmes expect a minimum 3.0 GPA, with top programmes often looking for 3.5 or higher. However, requirements vary widely by institution and field. Some programmes weight recent grades or major-specific GPA more heavily.
Can I recover from a low GPA?
Yes, but it takes time. A low first-year GPA can be improved significantly by consistently strong performance in subsequent years. The more credit hours you accumulate, the smaller the impact of any single course. Some universities also offer grade replacement policies for retaken courses.
Do plus and minus grades affect GPA?
At most universities that use the plus/minus system, yes. An A− (3.7) is lower than an A (4.0), and a B+ (3.3) is higher than a B (3.0). Some institutions do not use plus/minus grades, in which case each letter grade has a single point value.
How do I convert grades from a different country's system?
Different countries use different scales. For example, the UK uses a classification system (First, 2:1, 2:2, Third), Germany uses 1.0-5.0 (lower is better), and France uses 0-20. Credential evaluation services like WES can provide official conversions for admissions purposes.
What is the difference between weighted and unweighted GPA?
An unweighted GPA treats all courses equally on a 4.0 scale. A weighted GPA gives extra points (often up to 5.0) for advanced courses like AP or IB classes. Colleges typically recalculate GPA using their own system, so both figures matter.
Should I include failed courses in my grade calculation?
Yes, failed courses (F = 0.0) are included in your cumulative GPA calculation unless your institution has a grade forgiveness or course repeat policy that replaces the original grade.
More Everyday Calculators
Category
← Everyday CalculatorsNext up
Percentage Calculator →