Weighted average intuition
Your course grade is often a weighted average: homework, quizzes, midterms, and a final each take a slice of 100%. If the final is worth 30%, then 70% of your grade is already represented by your "current average" in the model we use.
Visual: 70% / 30% split (example)
Frequently asked questions
Quick answers about this calculator. For legal or financial decisions, consult a professional.
What does “exam weight” mean?
It is the share of the final grade the exam represents, as a percent of 100. For example, 30 means the final is 30% of the course grade and the rest is everything else averaged in.
Why might I see a score above 100%?
That implies reaching your goal on the remaining weight is not possible with a single exam under the numbers you entered—double-check weights and your current average.
Does this handle curved courses?
No. It assumes a linear weighted average. Curves and drops are not modeled.
Are results guaranteed?
No. Syllabus rules, rounding, and extra credit can change outcomes. Use this as a planning estimate only.