Your professor says the final is worth 30% of your grade. You have an 82%. You want an A-minus. What do you need on the exam? That is what this calculator tells you — to the decimal. Percentages and custom weights supported. No signup, no account, no watch-an-ad-first.
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The percentage you have right now in the course.
What overall grade you want to earn.
Usually on your syllabus. Something like 30%.
Whether your final is 10% or 50%, the math adjusts correctly.
We tell you plainly if no score on the final can get you there.
See what overall grade you would get with 70%, 80%, 90%, or 100% on the final.
Designed for the library bathroom stall at 11pm.
The formula:
Final score needed = (Target − Current × (1 − Weight)) / Weight
Example: Current 82%, target 90%, final worth 30%.
Needed = (90 − 82 × 0.7) / 0.3 = (90 − 57.4) / 0.3 = 32.6 / 0.3 = 108.7%
In this case, your target is not reachable even with a perfect final.