What score do you actually need on the final?
The exact reverse-weighted math that tells you whether you can relax or really need to hit the books.
Your course, decoded
Add your weighted categories, watch your current grade land, then see exactly what your final exam needs to score for the letter you want.
Letters
Most class syllabi list them — for example "Homework 20%, Quizzes 20%, Midterm 25%, Final 35%." If yours uses points instead, convert each category's weight as its share of the total possible points.
Leave the final category's score blank. Enter your target grade and the calculator works backward through the missing weight to show the exact score you need on the final.
Every teacher weights differently, and many curve or drop scores. Treat this as a planning tool that mirrors the most common weighted scheme, then check your syllabus and portal for the official number.