How is my grade calculated from weighted categories?

Each category's score is multiplied by its weight, those are summed, then divided by the total weight of every graded category. This is the same math your instructor's gradebook uses — a 40%-weighted final counts four times as much toward your overall grade as a 10%-weighted quiz average, regardless of how many individual assignments are in each.

What if my categories don't add up to 100%?

The calculator still works and shows a warning, but for an accurate result your weights should reflect your actual syllabus, which should total 100%. If your syllabus lists categories that don't sum to 100% on paper, check whether there's a dropped-lowest-score policy or an extra-credit category that accounts for the gap.

How does "what score do I need" work?

Enter every other category's score first, then pick the one remaining category (like a final exam) and a target overall grade. The calculator solves algebraically for the exact score needed in that one category to hit your target — the same approach as working backward from a target GPA.

Can I solve for more than one ungraded category at once?

No — solving requires exactly one unknown. If you have two or more categories without a score yet, enter your best estimate for all but one before using the "what score do I need" tool, or wait until only one category remains ungraded.

How does this connect to the GPA Calculator?

Once you have a current or projected grade here, the "Send this course to the GPA Calculator" section converts it to a letter grade and adds it as a course — complete with the name and credit hours you enter — directly into your GPA Calculator's course list, so you don't have to re-enter it by hand.

What grading scale converts my percentage to a letter?

A standard 10-point US scale: 97+ is A+, 93-96 is A, 90-92 is A-, and so on down to F below 60. Individual schools sometimes use slightly different cutoffs, so treat the letter shown as a close standard reference rather than your exact institution's policy.

Is my grade data saved anywhere?

Your categories are not sent to a server. If you use "Send this course to the GPA Calculator," the computed course is saved in your browser's local storage so it can appear in the GPA Calculator — this stays on your device and is never transmitted anywhere.

AI Insights

Grade / Final Grade Calculator

Calculate your current course grade from weighted categories, solve for the score you need on a final exam, and send the result straight into the GPA Calculator.

Last updated August 8, 2026

Grade categories

Weight %

Score % (blank = not yet graded)

Weight %

Score % (blank = not yet graded)

Weights total 100%

Current grade (graded categories only)

85.0% (B)

What score do I need?

Solve for category

Target overall grade %

Not possible — even a perfect 100% won't reach that target.

Sitting solidly in this range means your foundational understanding is already strong, so remaining assignments function more as fine-tuning than rescue missions. A single major exam or project usually carries enough weight here to nudge your standing up a full letter tier, but it rarely causes a dramatic collapse unless completely missed. Focusing your preparation on the few remaining high-value concepts will yield the most reliable results without requiring an unsustainable amount of extra study time.

AI-generated insight

Send this course to the GPA Calculator

Will be added as a B (85.0%).

How to use the grade calculator

1
Add each grading category from your syllabus with its weight and score — leave the score blank for anything not graded yet, like a final exam.
2
Your current grade updates instantly from whatever's already graded. To plan ahead, pick the remaining category and a target overall grade to see exactly what score you need.
3
Enter a course name and credit hours, then send it to the GPA Calculator — it's added as a course there automatically, ready to fold into your semester or cumulative GPA.

How weighted grades work

Each category's score is multiplied by its weight; the sum of those, divided by total weight, is the overall grade.

Most courses don't average every assignment equally — instead, assignments are grouped into categories (homework, quizzes, midterms, a final exam) and each category is worth a fixed percentage of the overall grade regardless of how many individual items are in it. A single 40%-weighted final exam can outweigh a dozen small 2%-weighted homework assignments combined.

This calculator treats any category with a blank score as "not yet graded" and excludes it from your current grade, renormalizing across whatever categories you do have scores for. That's different from treating a blank as a zero, which would understate your current standing.

The "what score do I need" tool solves the same equation in reverse: given every other category's score and weight, it works out exactly what you'd need on the one remaining category to land on a specific overall grade — the same backward-solving idea used by our GPA Calculator's target-GPA planner.

Sending a course to your GPA

A grade percentage isn't directly useful for GPA math — GPA runs on letter grades and credit hours. Once this calculator has a current or projected grade, it converts that percentage to a letter using a standard scale and lets you add it straight into the GPA Calculator as a real course, with the name and credit hours you specify — no need to work out the letter grade by hand or re-type anything.

Already have a percentage grade from somewhere else, like a gradebook app? Our Percentage Calculator can help with any conversion math before you enter a score here.

Already know your letter grades for every course? Skip ahead to the GPA Calculator →

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