Grade Calculator
Find out what you need on your final — or calculate your weighted course grade instantly.
Grade Calculator
Your Current Standing
Result
If You Score...
| Final Score | Course Grade | Letter |
|---|---|---|
| 50% | 72.4% | C- |
| 60% | 75.4% | C |
| 70% | 78.4% | C+ |
| 75% | 79.9% | C+ |
| 80% | 81.4% | B- |
| 85% | 82.9% | B- |
| 90% | 84.4% | B |
| 95% | 85.9% | B |
| 100% | 87.4% | B+ |
Based on your results — what to do next:
Calculate your semester GPA
Once you know your course grade, plug it into the GPA calculator to see your semester GPA on the 4.0 scale.
Saving for college or tuition?
Set a savings goal for tuition, textbooks, or study abroad — and get a monthly savings plan.
Plan your student loan repayment
Compare RAP vs. standard repayment options — see how much your degree actually costs after interest.
This grade calculator has two modes: Final Exam Needed tells you exactly what score you must earn on your final to hit any target course grade; Weighted Grade Calculator computes your overall average when different assignments count for different percentages of your grade. Enter grades as percentages or letter grades (A, B+, C−, etc.).
How the Grade Calculator Works
There are two formulas at work. The final exam needed calculator solves for the score required on a single upcoming exam given your current standing. The weighted grade calculator computes a weighted average across multiple grade categories.
| Variable | Definition |
|---|---|
| Target | The course grade you want to end with (e.g. 90%) |
| Current | Your grade before the final exam |
| PreFinalWeight | 1 − Final Exam Weight (e.g., 0.70 if final is worth 30%) |
| FinalWeight | Fraction of the course grade the final exam counts (e.g., 0.30) |
| Grade × Weight | Each category score multiplied by its percentage weight |
Worked example (Final Exam Needed): Current grade = 82%, final worth 30%, target = 90%. Pre-final weight = 70%. Final needed = (90 − 82 × 0.70) ÷ 0.30 = (90 − 57.4) ÷ 0.30 = 108.7% — not achievable. Lower the target to 85%: (85 − 57.4) ÷ 0.30 = 92.0%. You need a 92% on the final.
Worked example (Weighted Grade): Homework (20%, 92%) + Midterm (30%, 78%) + Final (50%, 85%) = (18.4 + 23.4 + 42.5) ÷ 100 = 84.3% (B).
💡 Pro-Tip: Minimum Study Threshold
Use this calculator to find your minimum needed score— then decide if it's worth shooting higher. If you only need a 68% to pass the class, every hour spent studying beyond that minimum has diminishing return. Redirect study hours to courses where you need a higher score or where grades are closer to a grade boundary. The "What if I score X?" scenario table shows exactly what different final exam scores do to your course grade — use it to set a realistic target before the exam, not after.
Grade Calculator FAQ
What score do I need on my final to get an A?
Set your target to 93% (the standard A threshold) and enter your current grade and final exam weight. The calculator instantly computes the minimum final exam score needed. If the result is over 100%, the A is mathematically impossible given your current standing — set a more achievable target like a B+ (87%) and study accordingly.
My professor uses a different grading scale — will this work?
Yes. The weighted grade calculator uses raw percentages — just enter your actual scores and weights exactly as your syllabus lists them. For the final exam needed calculator, enter the target percentage that corresponds to your target letter grade under your professor's scale. For example, if an A is 94%+ at your school, target 94 instead of 93.
What if my weights don't add up to 100%?
The weighted grade calculator will show you the total weight percentage — if it's not 100%, the result will still be mathematically correct as a weighted average of those categories, but may not reflect your final course grade accurately if you haven't entered all grade components. Always make sure your weights sum to 100% for the most accurate result.
How do I calculate my grade if some assignments are not yet graded?
For ungraded assignments, you can either skip them (which assumes you'll earn the average of your other grades on those items) or enter your best estimate. A common approach: enter your graded categories with their actual grades, then add the remaining categories with a target grade (e.g., 85%) to see what overall grade that scenario produces.
Does the curve affect this calculation?
Not automatically — you'd need to know how the curve is applied. If your professor adds a flat number of points (e.g., +5 points), add that to your score before entering it. If the curve is a multiplier (e.g., ×1.1), multiply your score first. If the curve adjusts grade cutoffs (e.g., 85+ is now an A), adjust your target grade accordingly.