Work out your grade from scores and weights. Enter each assignment or subject with its weight, and this calculator gives your total percentage and letter grade instantly.
Grade Calculator
Find out exactly what score you need on your final exam to hit your target course grade, or calculate your weighted class average across assignments and tests.
Course & exam weights
Calculate the final exam score you need, or switch to Weighted Average.
Your result will appear here
Enter your values above, then press Calculate Grade — or press Enter in any field.TinyExe · Grade Result
Final exam target & weighted course grade breakdown
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Name
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Current Grade
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Final Weight
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Required Score
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How this was calculated
What to do next
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Letter grade mappings use the standard US 10-point grading scale (A ≥ 93%, A− ≥ 90%, B+ ≥ 87%, B ≥ 83%, etc.). Check your course syllabus for custom cut-offs.
Standard grading scale & GPA equivalents
Typical high school and university percentage-to-letter conversion chart.
| Letter Grade | Percentage Band | 4.0 GPA Points |
|---|---|---|
| A / A+ | 93% – 100% | 4.0 |
| A− | 90% – 92.9% | 3.7 |
| B+ | 87% – 89.9% | 3.3 |
| B | 83% – 86.9% | 3.0 |
| B− | 80% – 82.9% | 2.7 |
| C+ / C / C− | 70% – 79.9% | 2.3 / 2.0 / 1.7 |
| D / F | 60%–69.9% / <60% | 1.0 / 0.0 |
The formula
How final exam targets and weighted averages are computed.
Final Exam Score Needed
Where w is the final exam weight expressed as a decimal (e.g. 25% = 0.25) and (1 − w) is the completed coursework weight.
Weighted Grade Average
Multiply each assignment or category percentage by its syllabus weight, sum the products, and divide by total weight.
Worked examples
Three real student scenarios solved step by step.
Example 1 · Final Target
88% current, want 90%, 25% final
Aiming to pull a B+ up to an A− on the final.
| Calculation | Steps |
|---|---|
| 88 × 0.75 = 66.0 pts | Points locked from 75% coursework. |
| (90 − 66) ÷ 0.25 = 96.0% | Score needed on the final exam. |
Need 96.0% on Final
Example 2 · Safe Margin
93% current, want 90%, 20% final
Checking the cushion needed to keep an A−.
| Calculation | Steps |
|---|---|
| 93 × 0.80 = 74.4 pts | Points locked from 80% coursework. |
| (90 − 74.4) ÷ 0.20 = 78.0% | 78% or higher on the final keeps ≥ 90%. |
Need 78.0% on Final
Example 3 · Weighted Avg
92% (40%), 85% (35%), 90% (25%)
Combining homework, midterms, and final project.
| Calculation | Steps |
|---|---|
| 36.8 + 29.75 + 22.5 = 89.05 | Sum of weighted points. |
| 89.05 ÷ 100 = 89.05% (B+) | Overall weighted course grade. |
89.05% (B+)
How to use this calculator
Choose Final Exam Target or Weighted Average
Use the top toggle to select what you want to solve.
Enter your current grade & final weight
For Final Exam Target, enter your current class average, your desired final grade, and the percentage weight of the final exam.
Press Calculate Grade
See the exact percentage needed on your final exam plus your maximum possible grade if you score 100%.
Frequently asked questions
How do I calculate what I need on my final exam?
Multiply your current grade by the fraction of the class already completed (1 − final weight), subtract that from your target grade, and divide by the final exam weight.
What if my category weights don't add up to 100% yet?
The Weighted Average tab automatically divides by the sum of the weights you enter, giving your true standing on graded work so far.