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TNToolsNexus

Final grade calculator

What do you need on the final? Enter your current grade, target, and the exam weight — get the required score with an honest achievable/impossible verdict.

You need on the final

97.5%

Score at least 97.5% on the final (worth 40% of the course) to finish with 90%.

Your grades never leave your browser — the math runs on your device.

Maintained by ToolsNexus

The finals-week question, answered exactly: what score do you need on the final to land the grade you want — with a straight verdict when the answer is “already secured” or “not possible without extra credit”.

How to use it

  1. Enter your current grade (everything before the final).
  2. Enter the grade you want to finish with.
  3. Enter the final’s weight from your syllabus — the required score appears instantly.

The math, and why the verdict matters

Your course grade is a weighted blend: what you’ve earned so far scaled by its share, plus the final scaled by its weight. Solving that equation backwards gives the required exam score — and the honest part is what happens at the edges. Above 100% means the target is mathematically out of reach; better to learn that with a week to spare (and ask about extra credit or aim one grade lower) than after a night of false-hope cramming. Zero or below means the grade is already locked in, which is its own kind of useful before deciding how to split study time between courses.

Study-time triage

This calculator’s real job is prioritization across finals: a course needing 55% deserves less of your week than one needing 92%. Compute your current standing first with the weighted grade calculator if the syllabus splits grades across components, then see what each result means on the 4.0 scale with the GPA converter.

Private by design

Grades are personal records. The calculation runs on your device — nothing you enter is uploaded, logged, or stored.

Last updated:

Frequently asked questions

How is the required final score calculated?
Your course grade is current × (1 − weight) + final × weight. Solving for the final: required = (target − current × (1 − weight)) ÷ weight. Worked example: at 85% with a 40% final, reaching 90% needs (90 − 85×0.6) ÷ 0.4 = 97.5% on the exam.
What does "impossible" mean here?
The required score came out above 100% — no legitimate exam performance reaches your target. That's worth knowing BEFORE finals week: ask about extra credit, or recompute with the best grade that is reachable.
What if I don't know my current grade?
Compute it first with the weighted grade calculator from your homework, quizzes, and midterm scores — then bring that number here.
Does this work for grades over 100% (extra credit)?
Yes — inputs accept up to 120%, so courses with extra credit baked into the current grade compute correctly.
Is my grade information stored anywhere?
No — the arithmetic runs in your browser and nothing is transmitted.

Related tools

Weighted Grade Calculator

Combine homework, midterms, and finals by their weights into your course grade — with a warning when weights don't add to 100%.

GPA Converter & Calculator

Convert percentages to letter grades and 4.0-scale GPA, and compute your credit-weighted cumulative GPA — with the full scale shown.

Percentage Calculator

Solve all three percentage questions in one place — X% of Y, X as a percent of Y, and percent change — instantly, with the sentence spelled out.