Final grade
calculator
The night-before question, answered properly: with your current grade and the final's weight, here's the exact exam score that gets you to your target, and whether it's even possible.
Doing it by hand too?
A few solid picks. As an Amazon Associate, Calculate.to earns from qualifying purchases, at no extra cost to you.
Casio fx-83GTCW+
The UK classroom-standard scientific calculator (also in pink), allowed in most UK exams.
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Helix Oxford Scientific
240-function scientific calculator for KS3–KS4 maths, with hard cover. Exam-friendly, plastic-free packaging.
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OSALO Desktop Calculator
Extra-large 12-digit LCD, giant buttons, solar + battery, the classic office desk workhorse.
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ROATEE Construction Calc
Feet-inch-fraction engineering calculator for carpenters, framers and contractors on site.
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The weighted-average behind it
Your course grade is a weighted blend: current work times its share, plus the final times its weight. Solving for the final's score gives one clean formula:
Reading the verdict
If the required score tops 100%, the target is mathematically gone, the ceiling row shows the best you can still finish with, which is worth knowing before you over-invest in one exam. If it's at or below zero, the target is already locked in. Between 90 and 100 means everything must go right; leave margin in your studying.
Watch the weight
The single most common error is entering the wrong weight, check the syllabus, and note some courses weight categories (homework, midterms, final) rather than one exam. Your "current grade" should be your standing across everything except the final. For the semester-wide picture, the GPA calculator is the companion tool.
Final grade FAQ
Subtract your current grade times its share from the target, then divide by the final's weight: at 78% with a 30% final, reaching 80% requires (80 − 78×0.7)÷0.3 ≈ 84.7%.
The target is out of reach, no exam score gets there. The calculator shows your ceiling (final grade at a perfect 100%) so you can aim for the best still-possible outcome.
Your weighted standing on everything except the final, most learning portals show it. If your course weights categories separately, use the syllabus weights to combine them first.
Not directly, replacement policies change the math per syllabus. Run it normally first; a replacement policy only ever helps beyond that baseline.