Final Grade Calculator
Find out exactly what you need to score on your final exam to reach the grade you want. Type your numbers — the answer updates instantly. Nothing is uploaded.
What do I need on my final?
Weighted Grade Calculator
Enter each component's score and its weight (%). Weights need not total 100 — the result is normalised.
GPA Calculator (4.0 scale)
Pick each course's letter grade and credit hours.
All grade & GPA calculators
How to calculate what you need on your final
The question every student asks at the end of term is "what do I need on my final to pass?" The maths is straightforward once you know your final exam's weight — the share of your overall grade it counts for. The formula is:
needed = (target − current × (1 − weight)) ÷ weight
Here weight is written as a decimal (a 30% final is 0.30). Suppose your current grade is 82%, you want 85% overall, and the final is worth 30%. Then needed = (85 − 82 × 0.70) ÷ 0.30 = (85 − 57.4) ÷ 0.30 = 92%. You would need 92% on the final.
What if I need more than 100%?
If the calculator returns a number above 100, your target can no longer be reached on the strength of the final exam alone. Your realistic options are to lower your target grade, ask about extra-credit opportunities, or speak with your instructor. The calculator flags this case in red so you are not caught out.
Weighted vs. unweighted grades
An unweighted grade treats every assignment equally. A weighted grade reflects that some components matter more: homework might count for 20%, the midterm 30% and the final 50%. To combine them, multiply each score by its weight, add the products, then divide by the total weight. The weighted grade calculator above does this automatically and normalises the weights for you.
How GPA is calculated
On the common US 4.0 scale, each letter grade maps to grade points (A = 4.0, B = 3.0, and so on). Your GPA is the credit-weighted average: multiply each course's grade points by its credit hours, sum those, and divide by total credits. See the dedicated GPA calculator and cumulative GPA calculator.
| Letter | Points | Letter | Points |
|---|---|---|---|
| A | 4.0 | C+ | 2.3 |
| A- | 3.7 | C | 2.0 |
| B+ | 3.3 | C- | 1.7 |
| B | 3.0 | D | 1.0 |
| B- | 2.7 | F | 0.0 |
Letter grades and percentages
Most US schools map percentages to letters on roughly this scale (your syllabus is the final word — some courses use +/− cutoffs at different points):
| Letter | Percentage | Letter | Percentage |
|---|---|---|---|
| A | 93–100% | C | 73–76% |
| A− | 90–92% | C− | 70–72% |
| B+ | 87–89% | D+ | 67–69% |
| B | 83–86% | D | 63–66% |
| B− | 80–82% | D− | 60–62% |
| C+ | 77–79% | F | 0–59% |
More worked examples
Passing with a low current grade. Current 68%, target 70% to pass, final worth 40% (0.40): needed = (70 − 68 × 0.60) ÷ 0.40 = (70 − 40.8) ÷ 0.40 = 73%. A 73% on the final gets you to a passing 70% overall.
Locking in an A. Current 91%, target 90%, final worth 25% (0.25): needed = (90 − 91 × 0.75) ÷ 0.25 = (90 − 68.25) ÷ 0.25 = 87%. Even an 87% keeps your A — useful for knowing how much cushion you have.
When it is out of reach. Current 60%, target 85%, final worth 20% (0.20): needed = (85 − 60 × 0.80) ÷ 0.20 = (85 − 48) ÷ 0.20 = 185%. Above 100%, so an 85% overall is not attainable from the final alone.
How to raise your GPA
- Prioritise high-credit courses — because GPA is credit-weighted, an A in a 4-credit class moves your average more than an A in a 1-credit class.
- Protect the classes you are already passing well — it is easier to hold a B+ at an A− than to rescue a failing grade.
- Retake policies — some schools replace the old grade when you retake a course; check whether a retake could lift your cumulative GPA.
- Model scenarios first — use the GPA calculator and raise-GPA calculator to see exactly which grades hit your target before the term starts.
Frequently asked questions
How do I calculate what I need on my final?
Use needed = (target − current × (1 − weight)) ÷ weight, with weight as a decimal. The calculator at the top does it instantly.
Where do I find my final's weight?
It is on your course syllabus, usually in a grading breakdown (for example: homework 20%, midterm 30%, final 50%). Enter the final's percentage — 50 in that example.
Does my current grade already include the final?
No. Enter your grade before the final — the average of everything graded so far. The calculator then works out what the still-ungraded final needs to be.
What is a passing grade?
It varies by school and course, but 60% (a D−) is a common minimum to pass, while many programs require a C (70–73%) for the credit to count toward a major.
What if I need more than 100% on my final?
Your target is no longer reachable with the final alone — lower the target, seek extra credit, or talk to your instructor.
What does the final exam weight mean?
It is the percentage of your overall course grade that the final counts for. A final worth 30% of the grade means enter 30.
Is this calculator free and private?
Yes — free, no sign-up, and all maths runs locally in your browser. Your grades are never uploaded.