A worked example
Scoring 90/100 on homework (worth 30%) and 80/100 on a midterm (worth 30%) gives a current weighted grade of 85% across that 60% of the course.
Frequently asked questions
Why does the calculator ask for weight percentages?
Most courses don't weigh every assignment equally — a final exam often counts far more than a single homework set. Weighting reflects that structure, rather than simply averaging every score equally.
What if the calculator says I need more than 100% on the final?
That target grade isn't mathematically achievable given your current standing and the final's weight — even a perfect score wouldn't get you there. You'd need to either revise the target or see if extra credit is available.
What if my weights don't add up to exactly 100%?
The calculator normalizes against whatever weight you've actually entered, but for an accurate 'final score needed' projection, your graded-items weights plus the final's weight should add up to 100%.