Grade Calculator

Multiply each assignment's score by its weight, add them up, and divide by the sum of the weights. Two quizzes at 90% worth 10% each plus a midterm at 70% worth 30% gives (90x10 + 90x10 + 70x30) / 50 = 78% so far. If the weights you enter do not reach 100%, the calculator averages across what you have entered and tells you so.

Your course grade is current x (1 - w) + final x w, where w is the final's weight as a fraction. Solving for the final score gives required = (desired - current x (1 - w)) / w. With an 78% current grade, an 85% target, and a 30% final, you need (85 - 78 x 0.7) / 0.3 = 101.3% - the calculator says plainly when a target is out of reach.

Then the target grade is mathematically unreachable through the final alone, and the tool says so rather than showing a meaningless number. Options at that point: ask about extra credit, check whether the lowest quiz is dropped, or recompute with a slightly lower target to see what is realistic.

Not for the math. The calculator divides by the actual total weight, so a partial list (say, 60% of the course graded so far) still yields a correct current grade. The amber note under the result reminds you how much weight your entries cover so you do not mistake a mid-semester grade for the final one.

Yes, with one conversion: divide earned points by maximum points to get a percent score per assignment first (38/50 = 76%). Weights can stay as points (use each assignment's maximum as its weight) because only the ratio matters in a weighted average.

No. Scores, weights, and names live only in the page's memory. Nothing is uploaded, stored, or tracked, and a refresh clears the table.