Weighted grade calculator
Most classes don't average your grades — they weight them. Enter each category with the weight from your syllabus to see where you really stand.
Why a simple average lies to you
If homework is 10% of your grade and exams are 60%, a perfect homework record barely moves the number while one bad exam moves it a lot. Averaging your category percentages treats them as equal and can be off by a full letter grade in either direction — which is how people end up shocked at report time despite "doing the maths".
The calculator multiplies each grade by its weight and divides by the total weight you entered. That last part matters mid-semester: if your categories only add up to 70% because finals haven't happened, the result is your standing within the graded portion, which is the honest read. The extra rows show what happens if the ungraded weight ended up as zero — useful for seeing how much is still at stake.
If your weights don't total 100%, the calculator says so rather than silently normalising, because a mismatch usually means a category was missed from the syllabus.
Questions
My weights don't add to 100%. Is that a problem?
Mid-semester it's normal — ungraded categories haven't happened yet, and the weighted average shown is your standing within what's been graded. If the semester is over, a mismatch means you've missed a category.
How do I handle points-based classes?
Convert each category to a percentage first (points earned ÷ points possible in that category), then use the syllabus weight. If the whole class is one big point pool, a plain total is already correct and you don't need weighting.
What about a dropped lowest score?
Apply the drop before entering the category grade — recompute that category without the dropped score, then enter the result here.