Grade Calculator
Weighted grades · Final exam needed · Score to letter grade
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Final Grade
percentage
—
Letter Grade
standard scale
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Items Graded
assignments
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Total Weight
percent used
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Score needed on your final exam
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Enter your final score to calculate your actual course grade.
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Final Course Grade
percentage
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Letter Grade
standard scale
Enter points earned and total possible. Get percentage and letter grade instantly for each assignment.
| Letter | Range | GPA | Description |
|---|---|---|---|
| A+/A | 90–100% | 4.0 | Excellent |
| A− | 90–92% | 3.7 | Excellent |
| B+ | 87–89% | 3.3 | Very Good |
| B | 83–86% | 3.0 | Good |
| B− | 80–82% | 2.7 | Good |
| C+ | 77–79% | 2.3 | Average |
| C | 73–76% | 2.0 | Average |
| C− | 70–72% | 1.7 | Average |
| D+ | 67–69% | 1.3 | Below Avg |
| D/D− | 60–66% | 1.0–0.7 | Below Avg |
| F | 0–59% | 0.0 | Failing |
This grade calculator handles three things most students need: weighted course grades, the final exam score you need to hit a target, and score-to-grade conversion. Enter your assignments, pick your weights, get your grade.
What Is a Grade Calculator?
A grade calculator computes your overall course grade from individual assignment and exam scores. Most courses don’t treat every assignment equally — a final exam worth 40% matters far more than a homework assignment worth 5%.
This tool handles that weight difference automatically. You enter each component’s score and its percentage weight. The calculator finds your weighted average grade and converts it to a letter grade.
It’s different from a GPA calculator, which converts course letter grades into a semester GPA across multiple classes. This calculator works inside a single course.
How Weighted Grades Work
Most courses assign different percentage weights to each grade component — homework, quizzes, midterm, final exam. Your overall grade is a weighted average, not a simple average.
Weighted Grade Formula
Grade = Σ (Score × Weight) ÷ Total Weight
Multiply each score by its weight, add them all up, divide by the total weight used.
Here’s why it matters. A 95% on homework worth 10% adds 9.5 points to your total. A 70% on a final worth 40% adds 28 points. The homework barely moves your grade. The final defines it.
| Component | Score | Weight | Weighted Points |
|---|---|---|---|
| Homework | 95% | 10% | 9.5 |
| Quizzes | 88% | 20% | 17.6 |
| Midterm | 78% | 30% | 23.4 |
| Final Exam | 82% | 40% | 32.8 |
| Total | — | 100% | 83.3% → B |
Weights don’t always add to 100%. If you haven’t completed all assignments yet, this calculator normalizes your weights automatically. So mid-semester calculations stay accurate.
Standard Letter Grade Scale
This calculator uses the standard US grading scale. Your school may use slightly different cutoffs — always check your syllabus.
A / A+
90–100%
B
80–89%
C
70–79%
D
60–69%
F
0–59%
A−
90–92%
B+
87–89%
C+
77–79%
Plus/minus grades use 0.3 point increments. B+ = 3.3, B = 3.0, B− = 2.7. To convert your course grade to GPA points, use the GPA Calculator.
How to Use Each Mode
📝 Weighted Grades — Calculate Your Current Grade
Enter each assignment or exam
Name it “Midterm” or “Homework 1” — or leave the name blank. It doesn’t affect your grade.
Add your score
Enter as a percentage (85) or pick a letter grade from the toggle. Both work.
Set the weight
Use the weight from your syllabus. Homework = 20%, Midterm = 30%, Final = 50% is a common split.
Hit Calculate
Your weighted average grade, letter grade, and per-assignment breakdown all appear instantly.
🎯 Final Exam Mode — What Score Do You Need?
Enter your current grade, the grade you want, and what percentage the final exam is worth. The calculator tells you the exact score you need — and whether it’s realistic.
Example — Safe Situation
52%
Current grade: 88% · Target: 80% · Final worth: 30%. You only need 52% on the final. You’re safe.
Example — High Pressure
97%
Current grade: 74% · Target: 85% · Final worth: 40%. You need 97%. Very hard but not impossible.
🔢 Score to Grade — Convert Points to Letter Grade
Got 46 out of 60 on a quiz? Enter the points earned and total possible. The calculator shows your percentage and letter grade instantly — and tracks a running average across all your entered scores.
This is the fastest way to check grades from Canvas, PowerSchool, or Schoology when they show raw points instead of percentages.
Real Grade Calculation Scenarios
These are the situations most students actually face — not textbook examples.
Scenario 1 — Weights Don’t Add to 100%
Your class has graded homework (20%), two quizzes (10% each), and a midterm (30%). That’s 70% of the total. The final hasn’t happened yet.
Enter only the assignments you’ve completed. This calculator normalizes the weights to what’s been graded so far. Your current grade is accurate — not dragged down by a zero for future work.
Scenario 2 — Grade Curve
Your professor curves the exam by adding 8 points to every score. You got a 67 on the midterm — after the curve it’s a 75.
Enter your curved score, not the raw score. Professors apply curves before calculating final grades. Using the raw score will give you an inaccurate result.
Scenario 3 — Extra Credit
Your professor offers 5 extra credit points added directly to your final percentage. You currently sit at 82%.
Add an extra row, enter 100% as the score, and set the weight to whatever percentage the extra credit contributes. The calculator includes it in your weighted average.
Scenario 4 — Mixed Input Types
Your professor posts some grades as percentages (homework: 88%) and some as points (midterm: 47/60). Use the Score to Grade tab to convert the points first. Then enter everything as percentages in the Weighted Grades tab.
How Grade Platforms Display Your Scores
Canvas, PowerSchool, Blackboard, and Schoology all calculate grades differently. Here’s what to know for each.
Canvas
Can show weighted or unweighted. Check “What If” grades in gradebook settings.
PowerSchool
Shows points by default. Divide points earned by total possible for percentage.
Blackboard
Uses weighted total columns. Weights set by instructor per assignment group.
Schoology
Grade categories each carry a weight. Check the course gradebook for breakdown.
Brightspace / D2L
“Final Calculated Grade” appears only after instructor makes it visible.
Infinite Campus
Shows term and semester grades. Quarter grades may be weighted into semester totals.
Always check your syllabus for the official weight breakdown. Platform displays sometimes lag behind manual grade updates or drop lowest score adjustments.
Common Grade Calculation Mistakes
Treating all assignments as equal
Adding up all your scores and dividing by the number of assignments gives the wrong answer. A 95% homework and a 65% final are not equal — the final counts far more.
Using uncurved scores
If your professor applied a grade curve, always enter the curved score. Using the raw score gives you a grade lower than your actual standing.
Confusing course grade with GPA
Your course grade (like 84%) is not your GPA. GPA is calculated from letter grades across all courses weighted by credit hours. Use the GPA Calculator for that.
Waiting until finals week to check your grade
Mid-semester is the best time to run these numbers. You still have time to improve before the final. Checking after the final is too late to change anything.
Ignoring the “drop lowest” policy
Many courses drop the lowest quiz or homework grade. Don’t enter that score. Your platform should show this, but verify in your syllabus before running the calculation.
Frequently Asked Questions
Know Your Grade Before the Final
Running these numbers mid-semester gives you time to act. You can drop a low-weight assignment, push harder on the final, or speak to your professor about recovery options.
Once you know your course grade, see how it affects your semester standing with the GPA Calculator. Need your overall transcript GPA? Use the Cumulative GPA Calculator.