Final Grade Percentage Calculator
Add up every part of your course — homework, quizzes, the midterm, the final — with each part's score and weight, and see your overall percentage and letter grade for the term.
Each row is one grade category. Enter its score (%) and the weight it carries (%). Weights are normalised, so they need not add to exactly 100.
The formula
overall = Σ(score × weight) ÷ Σ(weight)
Multiply each category's score by its weight, add the products, then divide by the total weight. Example: Homework 92% (20), Quizzes 85% (20), Midterm 78% (25), Final 88% (35) → (92×20 + 85×20 + 78×25 + 88×35) ÷ 100 = 8570 ÷ 100 = 85.7%, a B.
Difference from the final grade calculator
This page tells you the grade you already have from completed work. If instead you want to know what score you still need on an upcoming final to hit a target, use the final grade calculator.
Frequently asked questions
What if my weights don't add to 100?
That's fine — the result is normalised by dividing by the total weight you entered. This is handy mid-term when some categories aren't graded yet.
How do I leave out a category I haven't done?
Set its weight to 0, or delete the row by clearing both fields. Only weighted categories count.
How do I get the letter grade?
The result shows it automatically using the common US scale. The full table is on the grade converter.
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Weighted Grade Calculator · Final Grade Calculator · Semester Grade Calculator · Grade Converter · All grade tools