If you're aiming for…
| Target | You'd need on the final | Verdict |
|---|---|---|
| A (93%+) | — | — |
| A- (90%+) | — | — |
| B (83%+) | — | — |
| C (73%+) | — | — |
| D (63%+) | — | — |
Final Grade Calculator
The exact score you need on the final — simple, weighted or point-based classes.
Three ways to ask the same question
Every class keeps score differently, and the honest answer to “what do I need on my final?” depends on which one yours uses. That is why this calculator has three tabs instead of pretending one formula fits everyone:
You know your overall grade and the final's weight. Two numbers and a goal — this is the classic case.
Your syllabus says homework 20%, quizzes 20%, midterm 25%, final 35%. Enter each category and the calculator solves for the final directly.
The class is a running total — 450 of 500 points so far, final worth 100. No percentages needed.
Most calculators only do the first tab. If your class is weighted or point-based, converting it to a single “current grade” yourself is exactly where the arithmetic goes wrong — so this one does the conversion for you.
The formula
For the simple case, the required score on the final is:
where Weight is the final's share of the course grade written as a decimal (20% = 0.20).
The weighted tab uses the same idea with every category's weight in play, and the points tab works in raw points: needed points = goal% × (points so far + final points) − points earned.
Reading the answer honestly
Three things can come back, and this calculator says which one you are looking at instead of leaving you to guess:
- A number you can hit. It also shows what letter that number is, so “you need an 82” reads as “B− work on the final” — a target, not a threat.
- Zero. Your goal is already locked in even if you hand in a blank final. The table below the calculator shows which letters are already banked.
- More than 100%. The final alone cannot get you there, and no calculator can change that. What you can do: check the table for the best grade that is reachable, ask about extra credit or a curve, and re-read the syllabus for dropped-score or replacement policies — those change the maths in your favor and are worth asking about before the exam, not after.
What this calculator assumes
It assumes your current grade is final except for the final: no dropped scores still pending, no replacement policy, no separate lab section graded later. If your syllabus says “the final replaces your lowest exam,” the real number you need is lower than what the simple tab shows — model it in the weighted tab by removing that exam from its category, or treat this calculator's answer as your worst case.